---
_id: '12111'
abstract:
- lang: eng
text: Quantum impurities exhibit fascinating many-body phenomena when the small
interacting impurity changes the physics of a large noninteracting environment.
The characterisation of such strongly correlated nonperturbative effects is particularly
challenging due to the infinite size of the environment, and the inability of
local correlators to capture the buildup of long-ranged entanglement in the system.
Here, we harness an entanglement-based observable—the purity of the impurity—as
a witness for the formation of strong correlations. We showcase the utility of
our scheme by exactly solving the open Kondo box model in the small box limit,
and thus describe all-electronic dot-cavity devices. Specifically, we conclusively
characterize the metal-to-insulator phase transition in the system and identify
how the (conducting) dot-lead Kondo singlet is quenched by an (insulating) intraimpurity
singlet formation. Furthermore, we propose an experimentally feasible tomography
protocol for the measurement of the purity, which motivates the observation of
impurity physics through their entanglement build up.
acknowledgement: We thank G. Blatter, T. Ihn, K. Ensslin, M. Goldstein, C. Carisch,
and J. del Pino for illuminating discussions and acknowledge financial support from
the Swiss National Science Foundation (SNSF) through Project No. 190078, and from
the Deutsche Forschungsgemeinschaft (DFG) - Project No. 449653034. Our numerical
implementations are based on the ITensors JULIA library [64].
article_number: '043177'
article_processing_charge: No
article_type: original
author:
- first_name: Lidia
full_name: Stocker, Lidia
last_name: Stocker
- first_name: Stefan
full_name: Sack, Stefan
id: dd622248-f6e0-11ea-865d-ce382a1c81a5
last_name: Sack
- first_name: Michael S.
full_name: Ferguson, Michael S.
last_name: Ferguson
- first_name: Oded
full_name: Zilberberg, Oded
last_name: Zilberberg
citation:
ama: Stocker L, Sack S, Ferguson MS, Zilberberg O. Entanglement-based observables
for quantum impurities. Physical Review Research. 2022;4(4). doi:10.1103/PhysRevResearch.4.043177
apa: Stocker, L., Sack, S., Ferguson, M. S., & Zilberberg, O. (2022). Entanglement-based
observables for quantum impurities. Physical Review Research. American
Physical Society. https://doi.org/10.1103/PhysRevResearch.4.043177
chicago: Stocker, Lidia, Stefan Sack, Michael S. Ferguson, and Oded Zilberberg.
“Entanglement-Based Observables for Quantum Impurities.” Physical Review Research.
American Physical Society, 2022. https://doi.org/10.1103/PhysRevResearch.4.043177.
ieee: L. Stocker, S. Sack, M. S. Ferguson, and O. Zilberberg, “Entanglement-based
observables for quantum impurities,” Physical Review Research, vol. 4,
no. 4. American Physical Society, 2022.
ista: Stocker L, Sack S, Ferguson MS, Zilberberg O. 2022. Entanglement-based observables
for quantum impurities. Physical Review Research. 4(4), 043177.
mla: Stocker, Lidia, et al. “Entanglement-Based Observables for Quantum Impurities.”
Physical Review Research, vol. 4, no. 4, 043177, American Physical Society,
2022, doi:10.1103/PhysRevResearch.4.043177.
short: L. Stocker, S. Sack, M.S. Ferguson, O. Zilberberg, Physical Review Research
4 (2022).
date_created: 2023-01-08T23:00:53Z
date_published: 2022-12-01T00:00:00Z
date_updated: 2023-02-13T09:08:28Z
day: '01'
ddc:
- '530'
department:
- _id: MaSe
doi: 10.1103/PhysRevResearch.4.043177
file:
- access_level: open_access
checksum: 556820cf6e4af77c8476e5b8f4114d1a
content_type: application/pdf
creator: dernst
date_created: 2023-01-20T12:03:31Z
date_updated: 2023-01-20T12:03:31Z
file_id: '12328'
file_name: 2022_PhysicalReviewResearch_Stocker.pdf
file_size: 2941167
relation: main_file
success: 1
file_date_updated: 2023-01-20T12:03:31Z
has_accepted_license: '1'
intvolume: ' 4'
issue: '4'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Entanglement-based observables for quantum impurities
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 4
year: '2022'
...
---
_id: '12259'
abstract:
- lang: eng
text: 'Theoretical foundations of chaos have been predominantly laid out for finite-dimensional
dynamical systems, such as the three-body problem in classical mechanics and the
Lorenz model in dissipative systems. In contrast, many real-world chaotic phenomena,
e.g., weather, arise in systems with many (formally infinite) degrees of freedom,
which limits direct quantitative analysis of such systems using chaos theory.
In the present work, we demonstrate that the hydrodynamic pilot-wave systems offer
a bridge between low- and high-dimensional chaotic phenomena by allowing for a
systematic study of how the former connects to the latter. Specifically, we present
experimental results, which show the formation of low-dimensional chaotic attractors
upon destabilization of regular dynamics and a final transition to high-dimensional
chaos via the merging of distinct chaotic regions through a crisis bifurcation.
Moreover, we show that the post-crisis dynamics of the system can be rationalized
as consecutive scatterings from the nonattracting chaotic sets with lifetimes
following exponential distributions. '
acknowledgement: 'This work was partially funded by the Institute of Science and Technology
Austria Interdisciplinary Project Committee Grant “Pilot-Wave Hydrodynamics: Chaos
and Quantum Analogies.”'
article_number: '093138'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: George H
full_name: Choueiri, George H
id: 448BD5BC-F248-11E8-B48F-1D18A9856A87
last_name: Choueiri
- first_name: Balachandra
full_name: Suri, Balachandra
id: 47A5E706-F248-11E8-B48F-1D18A9856A87
last_name: Suri
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Björn
full_name: Hof, Björn
id: 3A374330-F248-11E8-B48F-1D18A9856A87
last_name: Hof
orcid: 0000-0003-2057-2754
- first_name: Nazmi B
full_name: Budanur, Nazmi B
id: 3EA1010E-F248-11E8-B48F-1D18A9856A87
last_name: Budanur
orcid: 0000-0003-0423-5010
citation:
ama: 'Choueiri GH, Suri B, Merrin J, Serbyn M, Hof B, Budanur NB. Crises and chaotic
scattering in hydrodynamic pilot-wave experiments. Chaos: An Interdisciplinary
Journal of Nonlinear Science. 2022;32(9). doi:10.1063/5.0102904'
apa: 'Choueiri, G. H., Suri, B., Merrin, J., Serbyn, M., Hof, B., & Budanur,
N. B. (2022). Crises and chaotic scattering in hydrodynamic pilot-wave experiments.
Chaos: An Interdisciplinary Journal of Nonlinear Science. AIP Publishing.
https://doi.org/10.1063/5.0102904'
chicago: 'Choueiri, George H, Balachandra Suri, Jack Merrin, Maksym Serbyn, Björn
Hof, and Nazmi B Budanur. “Crises and Chaotic Scattering in Hydrodynamic Pilot-Wave
Experiments.” Chaos: An Interdisciplinary Journal of Nonlinear Science.
AIP Publishing, 2022. https://doi.org/10.1063/5.0102904.'
ieee: 'G. H. Choueiri, B. Suri, J. Merrin, M. Serbyn, B. Hof, and N. B. Budanur,
“Crises and chaotic scattering in hydrodynamic pilot-wave experiments,” Chaos:
An Interdisciplinary Journal of Nonlinear Science, vol. 32, no. 9. AIP Publishing,
2022.'
ista: 'Choueiri GH, Suri B, Merrin J, Serbyn M, Hof B, Budanur NB. 2022. Crises
and chaotic scattering in hydrodynamic pilot-wave experiments. Chaos: An Interdisciplinary
Journal of Nonlinear Science. 32(9), 093138.'
mla: 'Choueiri, George H., et al. “Crises and Chaotic Scattering in Hydrodynamic
Pilot-Wave Experiments.” Chaos: An Interdisciplinary Journal of Nonlinear Science,
vol. 32, no. 9, 093138, AIP Publishing, 2022, doi:10.1063/5.0102904.'
short: 'G.H. Choueiri, B. Suri, J. Merrin, M. Serbyn, B. Hof, N.B. Budanur, Chaos:
An Interdisciplinary Journal of Nonlinear Science 32 (2022).'
date_created: 2023-01-16T09:58:16Z
date_published: 2022-09-26T00:00:00Z
date_updated: 2023-08-04T09:51:17Z
day: '26'
ddc:
- '530'
department:
- _id: MaSe
- _id: BjHo
- _id: NanoFab
doi: 10.1063/5.0102904
external_id:
arxiv:
- '2206.01531'
isi:
- '000861009600005'
file:
- access_level: open_access
checksum: 17881eff8b21969359a2dd64620120ba
content_type: application/pdf
creator: dernst
date_created: 2023-01-30T09:41:12Z
date_updated: 2023-01-30T09:41:12Z
file_id: '12445'
file_name: 2022_Chaos_Choueiri.pdf
file_size: 3209644
relation: main_file
success: 1
file_date_updated: 2023-01-30T09:41:12Z
has_accepted_license: '1'
intvolume: ' 32'
isi: 1
issue: '9'
keyword:
- Applied Mathematics
- General Physics and Astronomy
- Mathematical Physics
- Statistical and Nonlinear Physics
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
publication: 'Chaos: An Interdisciplinary Journal of Nonlinear Science'
publication_identifier:
eissn:
- 1089-7682
issn:
- 1054-1500
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Crises and chaotic scattering in hydrodynamic pilot-wave experiments
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 32
year: '2022'
...
---
_id: '12269'
abstract:
- lang: eng
text: We study the thermalization of a small XX chain coupled to long, gapped XXZ
leads at either side by observing the relaxation dynamics of the whole system.
Using extensive tensor network simulations, we show that such systems, although
not integrable, appear to show either extremely slow thermalization or even lack
thereof since the two cannot be distinguished within the accuracy of our numerics.
We show that the persistent oscillations observed in the spin current in the middle
of the XX chain are related to eigenstates of the entire system located within
the gap of the boundary chains. We find from exact diagonalization that some of
these states remain strictly localized within the XX chain and do not hybridize
with the rest of the system. The frequencies of the persistent oscillations determined
by numerical simulations of dynamics match the energy differences between these
states exactly. This has important implications for open systems, where the strongly
interacting leads are often assumed to thermalize the central system. Our results
suggest that, if we employ gapped systems for the leads, this assumption does
not hold.
acknowledgement: "M.L. and T.P. acknowledge support from the European Research Council
(ERC) through the advanced grant 694544 – OMNES and the grant P1-0402 of Slovenian
Research Agency (ARRS). M.L. acknowledges support from the European Research Council
(ERC) through the starting grant 850899 – NEQuM. D.R. acknowledges support from
the Ministry of Electronics & Information Technology (MeitY), India under the grant
for “Centre for Excellence in Quantum\r\nTechnologies” with Ref. No. 4(7)/2020-ITEA. "
article_number: '054314'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Marko
full_name: Ljubotina, Marko
id: F75EE9BE-5C90-11EA-905D-16643DDC885E
last_name: Ljubotina
- first_name: Dibyendu
full_name: Roy, Dibyendu
last_name: Roy
- first_name: Tomaž
full_name: Prosen, Tomaž
last_name: Prosen
citation:
ama: Ljubotina M, Roy D, Prosen T. Absence of thermalization of free systems coupled
to gapped interacting reservoirs. Physical Review B. 2022;106(5). doi:10.1103/physrevb.106.054314
apa: Ljubotina, M., Roy, D., & Prosen, T. (2022). Absence of thermalization
of free systems coupled to gapped interacting reservoirs. Physical Review B.
American Physical Society. https://doi.org/10.1103/physrevb.106.054314
chicago: Ljubotina, Marko, Dibyendu Roy, and Tomaž Prosen. “Absence of Thermalization
of Free Systems Coupled to Gapped Interacting Reservoirs.” Physical Review
B. American Physical Society, 2022. https://doi.org/10.1103/physrevb.106.054314.
ieee: M. Ljubotina, D. Roy, and T. Prosen, “Absence of thermalization of free systems
coupled to gapped interacting reservoirs,” Physical Review B, vol. 106,
no. 5. American Physical Society, 2022.
ista: Ljubotina M, Roy D, Prosen T. 2022. Absence of thermalization of free systems
coupled to gapped interacting reservoirs. Physical Review B. 106(5), 054314.
mla: Ljubotina, Marko, et al. “Absence of Thermalization of Free Systems Coupled
to Gapped Interacting Reservoirs.” Physical Review B, vol. 106, no. 5,
054314, American Physical Society, 2022, doi:10.1103/physrevb.106.054314.
short: M. Ljubotina, D. Roy, T. Prosen, Physical Review B 106 (2022).
date_created: 2023-01-16T10:00:39Z
date_published: 2022-08-31T00:00:00Z
date_updated: 2023-08-04T10:07:33Z
day: '31'
department:
- _id: MaSe
doi: 10.1103/physrevb.106.054314
ec_funded: 1
external_id:
arxiv:
- '2106.08373'
isi:
- '000861332900005'
intvolume: ' 106'
isi: 1
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2106.08373
month: '08'
oa: 1
oa_version: Preprint
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Absence of thermalization of free systems coupled to gapped interacting reservoirs
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 106
year: '2022'
...
---
_id: '12276'
abstract:
- lang: eng
text: Ongoing development of quantum simulators allows for a progressively finer
degree of control of quantum many-body systems. This motivates the development
of efficient approaches to facilitate the control of such systems and enable the
preparation of nontrivial quantum states. Here we formulate an approach to control
quantum systems based on matrix product states (MPSs). We compare counterdiabatic
and leakage minimization approaches to the so-called local steering problem that
consists in finding the best value of the control parameters for generating a
unitary evolution of the specific MPS in a given direction. In order to benchmark
the different approaches, we apply them to the generalization of the PXP model
known to exhibit coherent quantum dynamics due to quantum many-body scars. We
find that the leakage-based approach generally outperforms the counterdiabatic
framework and use it to construct a Floquet model with quantum scars. We perform
the first steps towards global trajectory optimization and demonstrate entanglement
steering capabilities in the generalized PXP model. Finally, we apply our leakage
minimization approach to construct quantum scars in the periodically driven nonintegrable
Ising model.
acknowledgement: We thank A. A. Michailidis for insightful discussions. M.L. and M.S.
acknowledge support from the European Research Council (ERC) under the European
Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 850899).
D.A. is supported by the European Research Council (ERC) under the European Union’s
Horizon 2020 research and innovation programme (Grant Agreement No. 864597) and
by the Swiss National Science Foundation. The infinite TEBD simulations were performed
using the ITensor library [67].
article_number: '030343'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Marko
full_name: Ljubotina, Marko
id: F75EE9BE-5C90-11EA-905D-16643DDC885E
last_name: Ljubotina
- first_name: Barbara
full_name: Roos, Barbara
id: 5DA90512-D80F-11E9-8994-2E2EE6697425
last_name: Roos
orcid: 0000-0002-9071-5880
- first_name: Dmitry A.
full_name: Abanin, Dmitry A.
last_name: Abanin
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: Ljubotina M, Roos B, Abanin DA, Serbyn M. Optimal steering of matrix product
states and quantum many-body scars. PRX Quantum. 2022;3(3). doi:10.1103/prxquantum.3.030343
apa: Ljubotina, M., Roos, B., Abanin, D. A., & Serbyn, M. (2022). Optimal steering
of matrix product states and quantum many-body scars. PRX Quantum. American
Physical Society. https://doi.org/10.1103/prxquantum.3.030343
chicago: Ljubotina, Marko, Barbara Roos, Dmitry A. Abanin, and Maksym Serbyn. “Optimal
Steering of Matrix Product States and Quantum Many-Body Scars.” PRX Quantum.
American Physical Society, 2022. https://doi.org/10.1103/prxquantum.3.030343.
ieee: M. Ljubotina, B. Roos, D. A. Abanin, and M. Serbyn, “Optimal steering of matrix
product states and quantum many-body scars,” PRX Quantum, vol. 3, no. 3.
American Physical Society, 2022.
ista: Ljubotina M, Roos B, Abanin DA, Serbyn M. 2022. Optimal steering of matrix
product states and quantum many-body scars. PRX Quantum. 3(3), 030343.
mla: Ljubotina, Marko, et al. “Optimal Steering of Matrix Product States and Quantum
Many-Body Scars.” PRX Quantum, vol. 3, no. 3, 030343, American Physical
Society, 2022, doi:10.1103/prxquantum.3.030343.
short: M. Ljubotina, B. Roos, D.A. Abanin, M. Serbyn, PRX Quantum 3 (2022).
date_created: 2023-01-16T10:01:56Z
date_published: 2022-09-23T00:00:00Z
date_updated: 2023-01-30T11:05:23Z
day: '23'
ddc:
- '530'
department:
- _id: MaSe
- _id: RoSe
doi: 10.1103/prxquantum.3.030343
ec_funded: 1
external_id:
arxiv:
- '2204.02899'
file:
- access_level: open_access
checksum: ef8f0a1b5a019b3958009162de0fa4c3
content_type: application/pdf
creator: dernst
date_created: 2023-01-30T11:02:50Z
date_updated: 2023-01-30T11:02:50Z
file_id: '12457'
file_name: 2022_PRXQuantum_Ljubotina.pdf
file_size: 7661905
relation: main_file
success: 1
file_date_updated: 2023-01-30T11:02:50Z
has_accepted_license: '1'
intvolume: ' 3'
issue: '3'
keyword:
- General Medicine
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: PRX Quantum
publication_identifier:
eissn:
- 2691-3399
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Optimal steering of matrix product states and quantum many-body scars
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 3
year: '2022'
...
---
_id: '12750'
abstract:
- lang: eng
text: Quantum kinetically constrained models have recently attracted significant
attention due to their anomalous dynamics and thermalization. In this work, we
introduce a hitherto unexplored family of kinetically constrained models featuring
a conserved particle number and strong inversion-symmetry breaking due to facilitated
hopping. We demonstrate that these models provide a generic example of so-called
quantum Hilbert space fragmentation, that is manifested in disconnected sectors
in the Hilbert space that are not apparent in the computational basis. Quantum
Hilbert space fragmentation leads to an exponential in system size number of eigenstates
with exactly zero entanglement entropy across several bipartite cuts. These eigenstates
can be probed dynamically using quenches from simple initial product states. In
addition, we study the particle spreading under unitary dynamics launched from
the domain wall state, and find faster than diffusive dynamics at high particle
densities, that crosses over into logarithmically slow relaxation at smaller densities.
Using a classically simulable cellular automaton, we reproduce the logarithmic
dynamics observed in the quantum case. Our work suggests that particle conserving
constrained models with inversion symmetry breaking realize so far unexplored
universality classes of dynamics and invite their further theoretical and experimental
studies.
article_number: '2210.15607'
article_processing_charge: No
arxiv: 1
author:
- first_name: Pietro
full_name: Brighi, Pietro
id: 4115AF5C-F248-11E8-B48F-1D18A9856A87
last_name: Brighi
orcid: 0000-0002-7969-2729
- first_name: Marko
full_name: Ljubotina, Marko
id: F75EE9BE-5C90-11EA-905D-16643DDC885E
last_name: Ljubotina
orcid: 0000-0003-0038-7068
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: Brighi P, Ljubotina M, Serbyn M. Hilbert space fragmentation and slow dynamics
in particle-conserving quantum East models. arXiv. doi:10.48550/arXiv.2210.15607
apa: Brighi, P., Ljubotina, M., & Serbyn, M. (n.d.). Hilbert space fragmentation
and slow dynamics in particle-conserving quantum East models. arXiv. https://doi.org/10.48550/arXiv.2210.15607
chicago: Brighi, Pietro, Marko Ljubotina, and Maksym Serbyn. “Hilbert Space Fragmentation
and Slow Dynamics in Particle-Conserving Quantum East Models.” ArXiv, n.d.
https://doi.org/10.48550/arXiv.2210.15607.
ieee: P. Brighi, M. Ljubotina, and M. Serbyn, “Hilbert space fragmentation and slow
dynamics in particle-conserving quantum East models,” arXiv. .
ista: Brighi P, Ljubotina M, Serbyn M. Hilbert space fragmentation and slow dynamics
in particle-conserving quantum East models. arXiv, 2210.15607.
mla: Brighi, Pietro, et al. “Hilbert Space Fragmentation and Slow Dynamics in Particle-Conserving
Quantum East Models.” ArXiv, 2210.15607, doi:10.48550/arXiv.2210.15607.
short: P. Brighi, M. Ljubotina, M. Serbyn, ArXiv (n.d.).
date_created: 2023-03-23T14:33:13Z
date_published: 2022-11-07T00:00:00Z
date_updated: 2023-09-20T10:46:29Z
day: '07'
department:
- _id: GradSch
- _id: MaSe
doi: 10.48550/arXiv.2210.15607
external_id:
arxiv:
- '2210.15607'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2210.15607
month: '11'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: submitted
related_material:
record:
- id: '12732'
relation: dissertation_contains
status: public
- id: '14334'
relation: later_version
status: public
status: public
title: Hilbert space fragmentation and slow dynamics in particle-conserving quantum
East models
tmp:
image: /images/cc_by_nc_sa.png
legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
BY-NC-SA 4.0)
short: CC BY-NC-SA (4.0)
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '8198'
abstract:
- lang: eng
text: We investigate how the critical driving amplitude at the Floquet many-body
localized (MBL) to ergodic phase transition differs between smooth and nonsmooth
drives. To this end, we numerically study a disordered spin-1/2 chain which is
periodically driven by a sine or square-wave drive over a wide range of driving
frequencies. In both cases the critical driving amplitude increases monotonically
with the frequency, and at large frequencies it is identical for the two drives.
However, at low and intermediate frequencies the critical amplitude of the square-wave
drive depends strongly on the frequency, while that of the sinusoidal drive is
almost constant over a wide frequency range. By analyzing the density of drive-induced
resonances we conclude that this difference is due to resonances induced by the
higher harmonics which are present (absent) in the Fourier spectrum of the square-wave
(sine) drive. Furthermore, we suggest a numerically efficient method for estimating
the frequency dependence of the critical driving amplitudes for different drives
which is based on calculating the density of drive-induced resonances. We conclude
that delocalization occurs once the density of drive-induced resonances reaches
a critical value determined only by the static system.
acknowledgement: We thank Y. Bar Lev, T. Biadse, and, particularly, E. Bairey and
B. Katzir for illuminating discussions and their many insights and help. The authors
thank N. Lindner for his support throughout this project. We are further grateful
to M. Serbyn, A. Kamenev, A. Turner, and S. de Nicola for reading the manuscript
and providing good feedback and suggestions. We acknowledge financial support from
the Defense Advanced Research Projects Agency through the DRINQS program, Grant
No. D18AC00025. T.G. was in part supported by an Aly Kaufman Fellowship at the Technion.
T.G. acknowledges funding from the Institute of Science and Technology (IST) Austria
and from the European Union’s Horizon 2020 research and innovation program under
Marie SkłodowskaCurie Grant Agreement No. 754411.under the Marie Skłodowska-Curie
Grant Agreement No.754411.
article_number: '214204'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Asaf A.
full_name: Diringer, Asaf A.
last_name: Diringer
- first_name: Tobias
full_name: Gulden, Tobias
id: 1083E038-9F73-11E9-A4B5-532AE6697425
last_name: Gulden
orcid: 0000-0001-6814-7541
citation:
ama: Diringer AA, Gulden T. Impact of drive harmonics on the stability of Floquet
many-body localization. Physical Review B. 2021;103(21). doi:10.1103/PhysRevB.103.214204
apa: Diringer, A. A., & Gulden, T. (2021). Impact of drive harmonics on the
stability of Floquet many-body localization. Physical Review B. American
Physical Society. https://doi.org/10.1103/PhysRevB.103.214204
chicago: Diringer, Asaf A., and Tobias Gulden. “Impact of Drive Harmonics on the
Stability of Floquet Many-Body Localization.” Physical Review B. American
Physical Society, 2021. https://doi.org/10.1103/PhysRevB.103.214204.
ieee: A. A. Diringer and T. Gulden, “Impact of drive harmonics on the stability
of Floquet many-body localization,” Physical Review B, vol. 103, no. 21.
American Physical Society, 2021.
ista: Diringer AA, Gulden T. 2021. Impact of drive harmonics on the stability of
Floquet many-body localization. Physical Review B. 103(21), 214204.
mla: Diringer, Asaf A., and Tobias Gulden. “Impact of Drive Harmonics on the Stability
of Floquet Many-Body Localization.” Physical Review B, vol. 103, no. 21,
214204, American Physical Society, 2021, doi:10.1103/PhysRevB.103.214204.
short: A.A. Diringer, T. Gulden, Physical Review B 103 (2021).
date_created: 2020-08-04T13:03:40Z
date_published: 2021-06-21T00:00:00Z
date_updated: 2023-08-04T10:56:33Z
day: '21'
department:
- _id: MaSe
doi: 10.1103/PhysRevB.103.214204
ec_funded: 1
external_id:
arxiv:
- '2007.14879'
isi:
- '000664429700005'
intvolume: ' 103'
isi: 1
issue: '21'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2007.14879
month: '06'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review B
publication_identifier:
eissn:
- '24699969'
issn:
- '24699950'
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Impact of drive harmonics on the stability of Floquet many-body localization
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 103
year: '2021'
...
---
_id: '9020'
abstract:
- lang: eng
text: 'We study dynamics and thermodynamics of ion transport in narrow, water-filled
channels, considered as effective 1D Coulomb systems. The long range nature of
the inter-ion interactions comes about due to the dielectric constants mismatch
between the water and the surrounding medium, confining the electric filed to
stay mostly within the water-filled channel. Statistical mechanics of such Coulomb
systems is dominated by entropic effects which may be accurately accounted for
by mapping onto an effective quantum mechanics. In presence of multivalent ions
the corresponding quantum mechanics appears to be non-Hermitian. In this review
we discuss a framework for semiclassical calculations for the effective non-Hermitian
Hamiltonians. Non-Hermiticity elevates WKB action integrals from the real line
to closed cycles on a complex Riemann surfaces where direct calculations are not
attainable. We circumvent this issue by applying tools from algebraic topology,
such as the Picard-Fuchs equation. We discuss how its solutions relate to the
thermodynamics and correlation functions of multivalent solutions within narrow,
water-filled channels. '
acknowledgement: "A.K. was supported by NSF grants DMR-2037654. T.G. acknowledges
funding from the Institute of Science and Technology (IST) Austria, and from the
European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie
Grant Agreement No. 754411.\r\nWe are indebted to Boris Shklovskii for introducing
us to the problem, and Alexander Gorsky and Peter Koroteev for introducing us to
the Picard-Fuchs methods. A very special thanks goes to Michael Janas for several
years of excellent collaboration on these topics. TG thanks Michael Kreshchuk for
introduction to the exact WKB method and great collaboration on related projects.
Figure 3 and Figure 4 are reproduced from Reference [25] with friendly permission
by the Russian Academy of Sciences. Figure 2, Figure 4, Figure 5, Figure 6, and
Figure 8 are reproduced from Reference [26] with friendly permission by IOP Publishing."
article_number: e23010125
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Tobias
full_name: Gulden, Tobias
id: 1083E038-9F73-11E9-A4B5-532AE6697425
last_name: Gulden
orcid: 0000-0001-6814-7541
- first_name: Alex
full_name: Kamenev, Alex
last_name: Kamenev
citation:
ama: Gulden T, Kamenev A. Dynamics of ion channels via non-hermitian quantum mechanics.
Entropy. 2021;23(1). doi:10.3390/e23010125
apa: Gulden, T., & Kamenev, A. (2021). Dynamics of ion channels via non-hermitian
quantum mechanics. Entropy. MDPI. https://doi.org/10.3390/e23010125
chicago: Gulden, Tobias, and Alex Kamenev. “Dynamics of Ion Channels via Non-Hermitian
Quantum Mechanics.” Entropy. MDPI, 2021. https://doi.org/10.3390/e23010125.
ieee: T. Gulden and A. Kamenev, “Dynamics of ion channels via non-hermitian quantum
mechanics,” Entropy, vol. 23, no. 1. MDPI, 2021.
ista: Gulden T, Kamenev A. 2021. Dynamics of ion channels via non-hermitian quantum
mechanics. Entropy. 23(1), e23010125.
mla: Gulden, Tobias, and Alex Kamenev. “Dynamics of Ion Channels via Non-Hermitian
Quantum Mechanics.” Entropy, vol. 23, no. 1, e23010125, MDPI, 2021, doi:10.3390/e23010125.
short: T. Gulden, A. Kamenev, Entropy 23 (2021).
date_created: 2021-01-19T11:12:06Z
date_published: 2021-01-19T00:00:00Z
date_updated: 2023-08-07T13:34:18Z
day: '19'
ddc:
- '530'
department:
- _id: MaSe
doi: 10.3390/e23010125
ec_funded: 1
external_id:
arxiv:
- '2012.01390'
isi:
- '000610122000001'
file:
- access_level: open_access
checksum: 6cd0e706156827c45c740534bd32c179
content_type: application/pdf
creator: tgulden
date_created: 2021-01-19T11:11:14Z
date_updated: 2021-01-19T11:11:14Z
file_id: '9021'
file_name: Final published paper.pdf
file_size: 981285
relation: main_file
file_date_updated: 2021-01-19T11:11:14Z
has_accepted_license: '1'
intvolume: ' 23'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Entropy
publication_identifier:
eissn:
- 1099-4300
publication_status: published
publisher: MDPI
quality_controlled: '1'
status: public
title: Dynamics of ion channels via non-hermitian quantum mechanics
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 23
year: '2021'
...
---
_id: '9048'
abstract:
- lang: eng
text: The analogy between an equilibrium partition function and the return probability
in many-body unitary dynamics has led to the concept of dynamical quantum phase
transition (DQPT). DQPTs are defined by nonanalyticities in the return amplitude
and are present in many models. In some cases, DQPTs can be related to equilibrium
concepts, such as order parameters, yet their universal description is an open
question. In this Letter, we provide first steps toward a classification of DQPTs
by using a matrix product state description of unitary dynamics in the thermodynamic
limit. This allows us to distinguish the two limiting cases of “precession” and
“entanglement” DQPTs, which are illustrated using an analytical description in
the quantum Ising model. While precession DQPTs are characterized by a large entanglement
gap and are semiclassical in their nature, entanglement DQPTs occur near avoided
crossings in the entanglement spectrum and can be distinguished by a complex pattern
of nonlocal correlations. We demonstrate the existence of precession and entanglement
DQPTs beyond Ising models, discuss observables that can distinguish them, and
relate their interplay to complex DQPT phenomenology.
acknowledgement: "S. D. N. acknowledges funding from the Institute of Science and
Technology (IST) Austria and from the European Union’s Horizon 2020 Research and
Innovation Programme under the Marie Skłodowska-Curie Grant Agreement No. 754411.
A. M. and M. S. were supported by the European Research Council (ERC) under the
European Union’s Horizon 2020 Research and\r\nInnovation Programme (Grant Agreement
No. 850899)."
article_number: '040602'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Stefano
full_name: De Nicola, Stefano
id: 42832B76-F248-11E8-B48F-1D18A9856A87
last_name: De Nicola
orcid: 0000-0002-4842-6671
- first_name: Alexios
full_name: Michailidis, Alexios
id: 36EBAD38-F248-11E8-B48F-1D18A9856A87
last_name: Michailidis
orcid: 0000-0002-8443-1064
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: De Nicola S, Michailidis A, Serbyn M. Entanglement view of dynamical quantum
phase transitions. Physical Review Letters. 2021;126(4). doi:10.1103/physrevlett.126.040602
apa: De Nicola, S., Michailidis, A., & Serbyn, M. (2021). Entanglement view
of dynamical quantum phase transitions. Physical Review Letters. American
Physical Society. https://doi.org/10.1103/physrevlett.126.040602
chicago: De Nicola, Stefano, Alexios Michailidis, and Maksym Serbyn. “Entanglement
View of Dynamical Quantum Phase Transitions.” Physical Review Letters.
American Physical Society, 2021. https://doi.org/10.1103/physrevlett.126.040602.
ieee: S. De Nicola, A. Michailidis, and M. Serbyn, “Entanglement view of dynamical
quantum phase transitions,” Physical Review Letters, vol. 126, no. 4. American
Physical Society, 2021.
ista: De Nicola S, Michailidis A, Serbyn M. 2021. Entanglement view of dynamical
quantum phase transitions. Physical Review Letters. 126(4), 040602.
mla: De Nicola, Stefano, et al. “Entanglement View of Dynamical Quantum Phase Transitions.”
Physical Review Letters, vol. 126, no. 4, 040602, American Physical Society,
2021, doi:10.1103/physrevlett.126.040602.
short: S. De Nicola, A. Michailidis, M. Serbyn, Physical Review Letters 126 (2021).
date_created: 2021-02-01T09:20:00Z
date_published: 2021-01-29T00:00:00Z
date_updated: 2023-09-05T12:08:58Z
day: '29'
ddc:
- '530'
department:
- _id: MaSe
doi: 10.1103/physrevlett.126.040602
ec_funded: 1
external_id:
arxiv:
- '2008.04894'
isi:
- '000613148200001'
file:
- access_level: open_access
checksum: d9acbc502390ed7a97e631d23ae19ecd
content_type: application/pdf
creator: dernst
date_created: 2021-02-03T12:47:04Z
date_updated: 2021-02-03T12:47:04Z
file_id: '9074'
file_name: 2021_PhysicalRevLett_DeNicola.pdf
file_size: 398075
relation: main_file
success: 1
file_date_updated: 2021-02-03T12:47:04Z
has_accepted_license: '1'
intvolume: ' 126'
isi: 1
issue: '4'
keyword:
- General Physics and Astronomy
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Entanglement view of dynamical quantum phase transitions
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 126
year: '2021'
...
---
_id: '9158'
abstract:
- lang: eng
text: While several tools have been developed to study the ground state of many-body
quantum spin systems, the limitations of existing techniques call for the exploration
of new approaches. In this manuscript we develop an alternative analytical and
numerical framework for many-body quantum spin ground states, based on the disentanglement
formalism. In this approach, observables are exactly expressed as Gaussian-weighted
functional integrals over scalar fields. We identify the leading contribution
to these integrals, given by the saddle point of a suitable effective action.
Analytically, we develop a field-theoretical expansion of the functional integrals,
performed by means of appropriate Feynman rules. The expansion can be truncated
to a desired order to obtain analytical approximations to observables. Numerically,
we show that the disentanglement approach can be used to compute ground state
expectation values from classical stochastic processes. While the associated fluctuations
grow exponentially with imaginary time and the system size, this growth can be
mitigated by means of an importance sampling scheme based on knowledge of the
saddle point configuration. We illustrate the advantages and limitations of our
methods by considering the quantum Ising model in 1, 2 and 3 spatial dimensions.
Our analytical and numerical approaches are applicable to a broad class of systems,
bridging concepts from quantum lattice models, continuum field theory, and classical
stochastic processes.
acknowledgement: "S D N would like to thank M J Bhaseen, J Chalker, B Doyon, V Gritsev,
A Lamacraft,\r\nA Michailidis and M Serbyn for helpful feedback and stimulating
conversations. S D N\r\nacknowledges funding from the Institute of Science and Technology
(IST) Austria, and\r\nfrom the European Union’s Horizon 2020 research and innovation
program under the\r\nMarie Sk\blodowska-Curie Grant Agreement No. 754411. S D N
also acknowledges funding\r\nfrom the EPSRC Center for Doctoral Training in Cross-Disciplinary
Approaches to Non-\r\nEquilibrium Systems (CANES) under Grant EP/L015854/1. S D
N is grateful to IST\r\nAustria for providing open access funding."
article_number: '013101'
article_processing_charge: No
article_type: original
author:
- first_name: Stefano
full_name: De Nicola, Stefano
id: 42832B76-F248-11E8-B48F-1D18A9856A87
last_name: De Nicola
orcid: 0000-0002-4842-6671
citation:
ama: 'De Nicola S. Disentanglement approach to quantum spin ground states: Field
theory and stochastic simulation. Journal of Statistical Mechanics: Theory
and Experiment. 2021;2021(1). doi:10.1088/1742-5468/abc7c7'
apa: 'De Nicola, S. (2021). Disentanglement approach to quantum spin ground states:
Field theory and stochastic simulation. Journal of Statistical Mechanics: Theory
and Experiment. IOP Publishing. https://doi.org/10.1088/1742-5468/abc7c7'
chicago: 'De Nicola, Stefano. “Disentanglement Approach to Quantum Spin Ground States:
Field Theory and Stochastic Simulation.” Journal of Statistical Mechanics:
Theory and Experiment. IOP Publishing, 2021. https://doi.org/10.1088/1742-5468/abc7c7.'
ieee: 'S. De Nicola, “Disentanglement approach to quantum spin ground states: Field
theory and stochastic simulation,” Journal of Statistical Mechanics: Theory
and Experiment, vol. 2021, no. 1. IOP Publishing, 2021.'
ista: 'De Nicola S. 2021. Disentanglement approach to quantum spin ground states:
Field theory and stochastic simulation. Journal of Statistical Mechanics: Theory
and Experiment. 2021(1), 013101.'
mla: 'De Nicola, Stefano. “Disentanglement Approach to Quantum Spin Ground States:
Field Theory and Stochastic Simulation.” Journal of Statistical Mechanics:
Theory and Experiment, vol. 2021, no. 1, 013101, IOP Publishing, 2021, doi:10.1088/1742-5468/abc7c7.'
short: 'S. De Nicola, Journal of Statistical Mechanics: Theory and Experiment 2021
(2021).'
date_created: 2021-02-17T17:48:46Z
date_published: 2021-01-05T00:00:00Z
date_updated: 2023-08-07T13:46:28Z
day: '05'
ddc:
- '530'
department:
- _id: MaSe
doi: 10.1088/1742-5468/abc7c7
ec_funded: 1
external_id:
isi:
- '000605080300001'
file:
- access_level: open_access
checksum: 64e2aae4837790db26e1dd1986c69c07
content_type: application/pdf
creator: dernst
date_created: 2021-02-19T14:04:40Z
date_updated: 2021-02-19T14:04:40Z
file_id: '9172'
file_name: 2021_JourStatMech_deNicola.pdf
file_size: 1693609
relation: main_file
success: 1
file_date_updated: 2021-02-19T14:04:40Z
has_accepted_license: '1'
intvolume: ' 2021'
isi: 1
issue: '1'
keyword:
- Statistics
- Probability and Uncertainty
- Statistics and Probability
- Statistical and Nonlinear Physics
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: B67AFEDC-15C9-11EA-A837-991A96BB2854
name: IST Austria Open Access Fund
publication: 'Journal of Statistical Mechanics: Theory and Experiment'
publication_identifier:
issn:
- 1742-5468
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: 'Disentanglement approach to quantum spin ground states: Field theory and stochastic
simulation'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 2021
year: '2021'
...
---
_id: '9224'
abstract:
- lang: eng
text: We re-examine attempts to study the many-body localization transition using
measures that are physically natural on the ergodic/quantum chaotic regime of
the phase diagram. Using simple scaling arguments and an analysis of various models
for which rigorous results are available, we find that these measures can be particularly
adversely affected by the strong finite-size effects observed in nearly all numerical
studies of many-body localization. This severely impacts their utility in probing
the transition and the localized phase. In light of this analysis, we discuss
a recent study (Šuntajs et al., 2020) of the behaviour of the Thouless energy
and level repulsion in disordered spin chains, and its implications for the question
of whether MBL is a true phase of matter.
article_number: '168415'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: D. A.
full_name: Abanin, D. A.
last_name: Abanin
- first_name: J. H.
full_name: Bardarson, J. H.
last_name: Bardarson
- first_name: G.
full_name: De Tomasi, G.
last_name: De Tomasi
- first_name: S.
full_name: Gopalakrishnan, S.
last_name: Gopalakrishnan
- first_name: V.
full_name: Khemani, V.
last_name: Khemani
- first_name: S. A.
full_name: Parameswaran, S. A.
last_name: Parameswaran
- first_name: F.
full_name: Pollmann, F.
last_name: Pollmann
- first_name: A. C.
full_name: Potter, A. C.
last_name: Potter
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: R.
full_name: Vasseur, R.
last_name: Vasseur
citation:
ama: 'Abanin DA, Bardarson JH, De Tomasi G, et al. Distinguishing localization from
chaos: Challenges in finite-size systems. Annals of Physics. 2021;427(4).
doi:10.1016/j.aop.2021.168415'
apa: 'Abanin, D. A., Bardarson, J. H., De Tomasi, G., Gopalakrishnan, S., Khemani,
V., Parameswaran, S. A., … Vasseur, R. (2021). Distinguishing localization from
chaos: Challenges in finite-size systems. Annals of Physics. Elsevier.
https://doi.org/10.1016/j.aop.2021.168415'
chicago: 'Abanin, D. A., J. H. Bardarson, G. De Tomasi, S. Gopalakrishnan, V. Khemani,
S. A. Parameswaran, F. Pollmann, A. C. Potter, Maksym Serbyn, and R. Vasseur.
“Distinguishing Localization from Chaos: Challenges in Finite-Size Systems.” Annals
of Physics. Elsevier, 2021. https://doi.org/10.1016/j.aop.2021.168415.'
ieee: 'D. A. Abanin et al., “Distinguishing localization from chaos: Challenges
in finite-size systems,” Annals of Physics, vol. 427, no. 4. Elsevier,
2021.'
ista: 'Abanin DA, Bardarson JH, De Tomasi G, Gopalakrishnan S, Khemani V, Parameswaran
SA, Pollmann F, Potter AC, Serbyn M, Vasseur R. 2021. Distinguishing localization
from chaos: Challenges in finite-size systems. Annals of Physics. 427(4), 168415.'
mla: 'Abanin, D. A., et al. “Distinguishing Localization from Chaos: Challenges
in Finite-Size Systems.” Annals of Physics, vol. 427, no. 4, 168415, Elsevier,
2021, doi:10.1016/j.aop.2021.168415.'
short: D.A. Abanin, J.H. Bardarson, G. De Tomasi, S. Gopalakrishnan, V. Khemani,
S.A. Parameswaran, F. Pollmann, A.C. Potter, M. Serbyn, R. Vasseur, Annals of
Physics 427 (2021).
date_created: 2021-03-07T23:01:25Z
date_published: 2021-04-01T00:00:00Z
date_updated: 2023-08-07T13:58:30Z
day: '01'
department:
- _id: MaSe
doi: 10.1016/j.aop.2021.168415
external_id:
arxiv:
- '1911.04501'
isi:
- '000634879800007'
intvolume: ' 427'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1911.04501
month: '04'
oa: 1
oa_version: Preprint
publication: Annals of Physics
publication_identifier:
eissn:
- 1096035X
issn:
- '00034916'
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Distinguishing localization from chaos: Challenges in finite-size systems'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 427
year: '2021'
...
---
_id: '9428'
abstract:
- lang: eng
text: Thermalization is the inevitable fate of many complex quantum systems, whose
dynamics allow them to fully explore the vast configuration space regardless of
the initial state---the behaviour known as quantum ergodicity. In a quest for
experimental realizations of coherent long-time dynamics, efforts have focused
on ergodicity-breaking mechanisms, such as integrability and localization. The
recent discovery of persistent revivals in quantum simulators based on Rydberg
atoms have pointed to the existence of a new type of behaviour where the system
rapidly relaxes for most initial conditions, while certain initial states give
rise to non-ergodic dynamics. This collective effect has been named ”quantum many-body
scarring’by analogy with a related form of weak ergodicity breaking that occurs
for a single particle inside a stadium billiard potential. In this Review, we
provide a pedagogical introduction to quantum many-body scars and highlight the
emerging connections with the semiclassical quantization of many-body systems.
We discuss the relation between scars and more general routes towards weak violations
of ergodicity due to embedded algebras and non-thermal eigenstates, and highlight
possible applications of scars in quantum technology.
acknowledgement: We thank our collaborators K. Bull, S. Choi, J.-Y. Desaules, W. W.
Ho, A. Hudomal, M. Lukin, I. Martin, H. Pichler, N. Regnault, I. Vasić and in particular
A. Michailidis and C. Turner, without whom this work would not have been possible.
We also benefited from discussions with E. Altman, B. A. Bernevig, A. Chandran,
P. Fendley, V. Khemani and L. Motrunich. M.S. was supported by the European Research
Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
(grant agreement no. 850899). D.A.A. was supported by the Swiss National Science
Foundation and by the ERC under the European Union’s Horizon 2020 research and innovation
programme (grant agreement no. 864597). Z.P. acknowledges support by the Leverhulme
Trust Research Leadership Award RL-2019-015.
article_processing_charge: No
article_type: review
arxiv: 1
author:
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Dmitry A.
full_name: Abanin, Dmitry A.
last_name: Abanin
- first_name: Zlatko
full_name: Papić, Zlatko
last_name: Papić
citation:
ama: Serbyn M, Abanin DA, Papić Z. Quantum many-body scars and weak breaking of
ergodicity. Nature Physics. 2021;17(6):675–685. doi:10.1038/s41567-021-01230-2
apa: Serbyn, M., Abanin, D. A., & Papić, Z. (2021). Quantum many-body scars
and weak breaking of ergodicity. Nature Physics. Nature Research. https://doi.org/10.1038/s41567-021-01230-2
chicago: Serbyn, Maksym, Dmitry A. Abanin, and Zlatko Papić. “Quantum Many-Body
Scars and Weak Breaking of Ergodicity.” Nature Physics. Nature Research,
2021. https://doi.org/10.1038/s41567-021-01230-2.
ieee: M. Serbyn, D. A. Abanin, and Z. Papić, “Quantum many-body scars and weak breaking
of ergodicity,” Nature Physics, vol. 17, no. 6. Nature Research, pp. 675–685,
2021.
ista: Serbyn M, Abanin DA, Papić Z. 2021. Quantum many-body scars and weak breaking
of ergodicity. Nature Physics. 17(6), 675–685.
mla: Serbyn, Maksym, et al. “Quantum Many-Body Scars and Weak Breaking of Ergodicity.”
Nature Physics, vol. 17, no. 6, Nature Research, 2021, pp. 675–685, doi:10.1038/s41567-021-01230-2.
short: M. Serbyn, D.A. Abanin, Z. Papić, Nature Physics 17 (2021) 675–685.
date_created: 2021-05-28T09:03:50Z
date_published: 2021-06-01T00:00:00Z
date_updated: 2023-10-18T08:20:59Z
day: '01'
ddc:
- '539'
department:
- _id: MaSe
doi: 10.1038/s41567-021-01230-2
ec_funded: 1
external_id:
arxiv:
- '2011.09486'
isi:
- '000655563800002'
file:
- access_level: open_access
checksum: 316ed42ea1b42b0f1a3025bb476266fc
content_type: application/pdf
creator: patrickd
date_created: 2021-09-20T09:27:43Z
date_updated: 2021-12-02T23:30:03Z
embargo: 2021-12-01
file_id: '10026'
file_name: RevisedQMBSreview.pdf
file_size: 10028836
relation: main_file
file_date_updated: 2021-12-02T23:30:03Z
has_accepted_license: '1'
intvolume: ' 17'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Preprint
page: 675–685
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Nature Physics
publication_identifier:
eissn:
- 1745-2481
publication_status: published
publisher: Nature Research
quality_controlled: '1'
status: public
title: Quantum many-body scars and weak breaking of ergodicity
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 17
year: '2021'
...
---
_id: '9618'
abstract:
- lang: eng
text: The control of nonequilibrium quantum dynamics in many-body systems is challenging
because interactions typically lead to thermalization and a chaotic spreading
throughout Hilbert space. We investigate nonequilibrium dynamics after rapid quenches
in a many-body system composed of 3 to 200 strongly interacting qubits in one
and two spatial dimensions. Using a programmable quantum simulator based on Rydberg
atom arrays, we show that coherent revivals associated with so-called quantum
many-body scars can be stabilized by periodic driving, which generates a robust
subharmonic response akin to discrete time-crystalline order. We map Hilbert space
dynamics, geometry dependence, phase diagrams, and system-size dependence of this
emergent phenomenon, demonstrating new ways to steer complex dynamics in many-body
systems and enabling potential applications in quantum information science.
acknowledgement: 'We thank many members of the Harvard AMO community, particularly
E. Urbach, S. Dakoulas, and J. Doyle for their efforts enabling safe and productive
operation of our laboratories during 2020. We thank D. Abanin, I. Cong, F. Machado,
H. Pichler, N. Yao, B. Ye, and H. Zhou for stimulating discussions. Funding: We
acknowledge financial support from the Center for Ultracold Atoms, the National
Science Foundation, the Vannevar Bush Faculty Fellowship, the U.S. Department of
Energy (LBNL QSA Center and grant no. DE-SC0021013), the Office of Naval Research,
the Army Research Office MURI, the DARPA DRINQS program (grant no. D18AC00033),
and the DARPA ONISQ program (grant no. W911NF2010021). The authors acknowledge support
from the NSF Graduate Research Fellowship Program (grant DGE1745303) and The Fannie
and John Hertz Foundation (D.B.); a National Defense Science and Engineering Graduate
(NDSEG) fellowship (H.L.); a fellowship from the Max Planck/Harvard Research Center
for Quantum Optics (G.S.); Gordon College (T.T.W.); the European Research Council
(ERC) under the European Union’s Horizon 2020 research and innovation program (grant
agreement no. 850899) (A.A.M. and M.S.); a Department of Energy Computational Science
Graduate Fellowship under award number DE-SC0021110 (N.M.); the Moore Foundation’s
EPiQS Initiative grant no. GBMF4306, the NUS Development grant AY2019/2020, and
the Stanford Institute of Theoretical Physics (W.W.H.); and the Miller Institute
for Basic Research in Science (S.C.). Author contributions: D.B., A.O., H.L., A.K.,
G.S., S.E., and T.T.W. contributed to the building of the experimental setup, performed
the measurements, and analyzed the data. A.A.M., N.M., W.W.H., S.C., and M.S. performed
theoretical analysis. All work was supervised by M.G., V.V., and M.D.L. All authors
discussed the results and contributed to the manuscript. Competing interests: M.G.,
V.V., and M.D.L. are co-founders and shareholders of QuEra Computing. A.O. is a
shareholder of QuEra Computing. Data and materials availability: All data needed
to evaluate the conclusions in the paper are present in the paper and the supplementary
materials.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: D.
full_name: Bluvstein, D.
last_name: Bluvstein
- first_name: A.
full_name: Omran, A.
last_name: Omran
- first_name: H.
full_name: Levine, H.
last_name: Levine
- first_name: A.
full_name: Keesling, A.
last_name: Keesling
- first_name: G.
full_name: Semeghini, G.
last_name: Semeghini
- first_name: S.
full_name: Ebadi, S.
last_name: Ebadi
- first_name: T. T.
full_name: Wang, T. T.
last_name: Wang
- first_name: Alexios
full_name: Michailidis, Alexios
id: 36EBAD38-F248-11E8-B48F-1D18A9856A87
last_name: Michailidis
orcid: 0000-0002-8443-1064
- first_name: N.
full_name: Maskara, N.
last_name: Maskara
- first_name: W. W.
full_name: Ho, W. W.
last_name: Ho
- first_name: S.
full_name: Choi, S.
last_name: Choi
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: M.
full_name: Greiner, M.
last_name: Greiner
- first_name: V.
full_name: Vuletić, V.
last_name: Vuletić
- first_name: M. D.
full_name: Lukin, M. D.
last_name: Lukin
citation:
ama: Bluvstein D, Omran A, Levine H, et al. Controlling quantum many-body dynamics
in driven Rydberg atom arrays. Science. 2021;371(6536):1355-1359. doi:10.1126/science.abg2530
apa: Bluvstein, D., Omran, A., Levine, H., Keesling, A., Semeghini, G., Ebadi, S.,
… Lukin, M. D. (2021). Controlling quantum many-body dynamics in driven Rydberg
atom arrays. Science. AAAS. https://doi.org/10.1126/science.abg2530
chicago: Bluvstein, D., A. Omran, H. Levine, A. Keesling, G. Semeghini, S. Ebadi,
T. T. Wang, et al. “Controlling Quantum Many-Body Dynamics in Driven Rydberg Atom
Arrays.” Science. AAAS, 2021. https://doi.org/10.1126/science.abg2530.
ieee: D. Bluvstein et al., “Controlling quantum many-body dynamics in driven
Rydberg atom arrays,” Science, vol. 371, no. 6536. AAAS, pp. 1355–1359,
2021.
ista: Bluvstein D, Omran A, Levine H, Keesling A, Semeghini G, Ebadi S, Wang TT,
Michailidis A, Maskara N, Ho WW, Choi S, Serbyn M, Greiner M, Vuletić V, Lukin
MD. 2021. Controlling quantum many-body dynamics in driven Rydberg atom arrays.
Science. 371(6536), 1355–1359.
mla: Bluvstein, D., et al. “Controlling Quantum Many-Body Dynamics in Driven Rydberg
Atom Arrays.” Science, vol. 371, no. 6536, AAAS, 2021, pp. 1355–59, doi:10.1126/science.abg2530.
short: D. Bluvstein, A. Omran, H. Levine, A. Keesling, G. Semeghini, S. Ebadi, T.T.
Wang, A. Michailidis, N. Maskara, W.W. Ho, S. Choi, M. Serbyn, M. Greiner, V.
Vuletić, M.D. Lukin, Science 371 (2021) 1355–1359.
date_created: 2021-06-29T12:04:05Z
date_published: 2021-03-26T00:00:00Z
date_updated: 2023-08-10T13:57:07Z
day: '26'
ddc:
- '539'
department:
- _id: MaSe
doi: 10.1126/science.abg2530
ec_funded: 1
external_id:
arxiv:
- '2012.12276'
isi:
- '000636043400048'
pmid:
- '33632894'
file:
- access_level: open_access
checksum: 0b356fd10ab9bb95177d4c047d4e9c1a
content_type: application/pdf
creator: patrickd
date_created: 2021-09-23T14:00:05Z
date_updated: 2021-09-23T14:00:05Z
file_id: '10040'
file_name: scars_subharmonic_combined_manuscript_2_11_2021 (2)-1.pdf
file_size: 3671159
relation: main_file
success: 1
file_date_updated: 2021-09-23T14:00:05Z
has_accepted_license: '1'
intvolume: ' 371'
isi: 1
issue: '6536'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '03'
oa: 1
oa_version: Preprint
page: 1355-1359
pmid: 1
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: AAAS
quality_controlled: '1'
scopus_import: '1'
status: public
title: Controlling quantum many-body dynamics in driven Rydberg atom arrays
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 371
year: '2021'
...
---
_id: '10025'
abstract:
- lang: eng
text: Ferromagnetism is most common in transition metal compounds but may also arise
in low-density two-dimensional electron systems, with signatures observed in silicon,
III-V semiconductor systems, and graphene moiré heterostructures. Here we show
that gate-tuned van Hove singularities in rhombohedral trilayer graphene drive
the spontaneous ferromagnetic polarization of the electron system into one or
more spin- and valley flavors. Using capacitance measurements on graphite-gated
van der Waals heterostructures, we find a cascade of density- and electronic displacement
field tuned phase transitions marked by negative electronic compressibility. The
transitions define the boundaries between phases where quantum oscillations have
either four-fold, two-fold, or one-fold degeneracy, associated with a spin and
valley degenerate normal metal, spin-polarized `half-metal', and spin and valley
polarized `quarter metal', respectively. For electron doping, the salient features
are well captured by a phenomenological Stoner model with a valley-anisotropic
Hund's coupling, likely arising from interactions at the lattice scale. For hole
filling, we observe a richer phase diagram featuring a delicate interplay of broken
symmetries and transitions in the Fermi surface topology. Finally, by rotational
alignment of a hexagonal boron nitride substrate to induce a moiré superlattice,
we find that the superlattice perturbs the preexisting isospin order only weakly,
leaving the basic phase diagram intact while catalyzing the formation of topologically
nontrivial gapped states whenever itinerant half- or quarter metal states occur
at half- or quarter superlattice band filling. Our results show that rhombohedral
trilayer graphene is an ideal platform for well-controlled tests of many-body
theory and reveal magnetism in moiré materials to be fundamentally itinerant in
nature.
acknowledgement: "The authors acknowledge discussions with A. Macdonald, L. Fu, F.
Wang and M. Zaletel. AFY acknowledges support of the National Science Foundation
under DMR1654186, and the Gordon and Betty Moore Foundation under award GBMF9471.
The authors acknowledge the use of the research facilities within the California
NanoSystems Institute, supported by the University of California, Santa Barbara
and the University of California, Office of the President.\r\nK.W. and T.T. acknowledge
support from the Elemental Strategy Initiative conducted by the MEXT, Japan, Grant
Number JPMXP0112101001 and JSPS KAKENHI, Grant Number JP20H00354. EB and TH were
supported by the European Research Council (ERC) under grant HQMAT (Grant Agreement
No. 817799). A.G. acknowledges support by the European Unions Horizon 2020 research
and innovation program under the Marie Sklodowska-Curie Grant Agreement\r\nNo. 754411.\r\n"
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Haoxin
full_name: Zhou, Haoxin
last_name: Zhou
- first_name: Tian
full_name: Xie, Tian
last_name: Xie
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Tobias
full_name: Holder, Tobias
last_name: Holder
- first_name: James R.
full_name: Ehrets, James R.
last_name: Ehrets
- first_name: Eric M.
full_name: Spanton, Eric M.
last_name: Spanton
- first_name: Takashi
full_name: Taniguchi, Takashi
last_name: Taniguchi
- first_name: Kenji
full_name: Watanabe, Kenji
last_name: Watanabe
- first_name: Erez
full_name: Berg, Erez
last_name: Berg
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Andrea F.
full_name: Young, Andrea F.
last_name: Young
citation:
ama: Zhou H, Xie T, Ghazaryan A, et al. Half and quarter metals in rhombohedral
trilayer graphene. Nature. 2021. doi:10.1038/s41586-021-03938-w
apa: Zhou, H., Xie, T., Ghazaryan, A., Holder, T., Ehrets, J. R., Spanton, E. M.,
… Young, A. F. (2021). Half and quarter metals in rhombohedral trilayer graphene.
Nature. Springer Nature. https://doi.org/10.1038/s41586-021-03938-w
chicago: Zhou, Haoxin, Tian Xie, Areg Ghazaryan, Tobias Holder, James R. Ehrets,
Eric M. Spanton, Takashi Taniguchi, et al. “Half and Quarter Metals in Rhombohedral
Trilayer Graphene.” Nature. Springer Nature, 2021. https://doi.org/10.1038/s41586-021-03938-w.
ieee: H. Zhou et al., “Half and quarter metals in rhombohedral trilayer graphene,”
Nature. Springer Nature, 2021.
ista: Zhou H, Xie T, Ghazaryan A, Holder T, Ehrets JR, Spanton EM, Taniguchi T,
Watanabe K, Berg E, Serbyn M, Young AF. 2021. Half and quarter metals in rhombohedral
trilayer graphene. Nature.
mla: Zhou, Haoxin, et al. “Half and Quarter Metals in Rhombohedral Trilayer Graphene.”
Nature, Springer Nature, 2021, doi:10.1038/s41586-021-03938-w.
short: H. Zhou, T. Xie, A. Ghazaryan, T. Holder, J.R. Ehrets, E.M. Spanton, T. Taniguchi,
K. Watanabe, E. Berg, M. Serbyn, A.F. Young, Nature (2021).
date_created: 2021-09-19T22:01:25Z
date_published: 2021-09-01T00:00:00Z
date_updated: 2023-08-14T07:04:06Z
day: '01'
department:
- _id: MaSe
- _id: MiLe
doi: 10.1038/s41586-021-03938-w
ec_funded: 1
external_id:
arxiv:
- '2104.00653'
isi:
- '000706977400002'
isi: 1
keyword:
- condensed matter - mesoscale and nanoscale physics
- condensed matter - strongly correlated electrons
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2104.00653
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Nature
publication_identifier:
eissn:
- 1476-4687
issn:
- 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1038/s41586-021-04181-z
scopus_import: '1'
status: public
title: Half and quarter metals in rhombohedral trilayer graphene
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '10029'
abstract:
- lang: eng
text: Superconductor-semiconductor hybrids are platforms for realizing effective
p-wave superconductivity. Spin-orbit coupling, combined with the proximity effect,
causes the two-dimensional semiconductor to inherit p±ip intraband pairing, and
application of magnetic field can then result in transitions to the normal state,
partial Bogoliubov Fermi surfaces, or topological phases with Majorana modes.
Experimentally probing the hybrid superconductor-semiconductor interface is challenging
due to the shunting effect of the conventional superconductor. Consequently, the
nature of induced pairing remains an open question. Here, we use the circuit quantum
electrodynamics architecture to probe induced superconductivity in a two dimensional
Al-InAs hybrid system. We observe a strong suppression of superfluid density and
enhanced dissipation driven by magnetic field, which cannot be accounted for by
the depairing theory of an s-wave superconductor. These observations are explained
by a picture of independent intraband p±ip superconductors giving way to partial
Bogoliubov Fermi surfaces, and allow for the first characterization of key properties
of the hybrid superconducting system.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: This research was supported by the Scientific Service Units of IST
Austria through resources provided by the MIBA Machine Shop and the nanofabrication
facility. JS and AG were supported by funding from the European Union’s Horizon
2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement
No.754411.
article_number: '2107.03695'
article_processing_charge: No
arxiv: 1
author:
- first_name: Duc T
full_name: Phan, Duc T
id: 29C8C0B4-F248-11E8-B48F-1D18A9856A87
last_name: Phan
- first_name: Jorden L
full_name: Senior, Jorden L
id: 5479D234-2D30-11EA-89CC-40953DDC885E
last_name: Senior
orcid: 0000-0002-0672-9295
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: M.
full_name: Hatefipour, M.
last_name: Hatefipour
- first_name: W. M.
full_name: Strickland, W. M.
last_name: Strickland
- first_name: J.
full_name: Shabani, J.
last_name: Shabani
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
citation:
ama: Phan DT, Senior JL, Ghazaryan A, et al. Breakdown of induced p±ip pairing in
a superconductor-semiconductor hybrid. arXiv.
apa: Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M.,
Shabani, J., … Higginbotham, A. P. (n.d.). Breakdown of induced p±ip pairing in
a superconductor-semiconductor hybrid. arXiv.
chicago: Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland,
J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Breakdown of Induced P±ip
Pairing in a Superconductor-Semiconductor Hybrid.” ArXiv, n.d.
ieee: D. T. Phan et al., “Breakdown of induced p±ip pairing in a superconductor-semiconductor
hybrid,” arXiv. .
ista: Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn
M, Higginbotham AP. Breakdown of induced p±ip pairing in a superconductor-semiconductor
hybrid. arXiv, 2107.03695.
mla: Phan, Duc T., et al. “Breakdown of Induced P±ip Pairing in a Superconductor-Semiconductor
Hybrid.” ArXiv, 2107.03695.
short: D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J.
Shabani, M. Serbyn, A.P. Higginbotham, ArXiv (n.d.).
date_created: 2021-09-21T08:41:02Z
date_published: 2021-07-08T00:00:00Z
date_updated: 2024-02-21T12:36:52Z
day: '08'
department:
- _id: MaSe
- _id: AnHi
- _id: MiLe
ec_funded: 1
external_id:
arxiv:
- '2107.03695'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2107.03695
month: '07'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: arXiv
publication_status: submitted
related_material:
record:
- id: '10851'
relation: later_version
status: public
- id: '9636'
relation: research_data
status: public
status: public
title: Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '10067'
abstract:
- lang: eng
text: The search for novel entangled phases of matter has lead to the recent discovery
of a new class of “entanglement transitions,” exemplified by random tensor networks
and monitored quantum circuits. Most known examples can be understood as some
classical ordering transitions in an underlying statistical mechanics model, where
entanglement maps onto the free-energy cost of inserting a domain wall. In this
paper we study the possibility of entanglement transitions driven by physics beyond
such statistical mechanics mappings. Motivated by recent applications of neural-network-inspired
variational Ansätze, we investigate under what conditions on the variational parameters
these Ansätze can capture an entanglement transition. We study the entanglement
scaling of short-range restricted Boltzmann machine (RBM) quantum states with
random phases. For uncorrelated random phases, we analytically demonstrate the
absence of an entanglement transition and reveal subtle finite-size effects in
finite-size numerical simulations. Introducing phases with correlations decaying
as 1/r^α in real space, we observe three regions with a different scaling of entanglement
entropy depending on the exponent α. We study the nature of the transition between
these regions, finding numerical evidence for critical behavior. Our work establishes
the presence of long-range correlated phases in RBM-based wave functions as a
required ingredient for entanglement transitions.
acknowledgement: We would like to thank S. De Nicola, P. Brighi, and V. Karle for
fruitful discussions and valuable feedback on the manuscript. R.M. and M.S. acknowledge
support by the European Research Council (ERC) under the European Union's Horizon
2020 research and innovation program (Grant Agreement No. 850899). R.V. acknowledges
support from the US Department of Energy, Office of Science, Basic Energy Sciences,
under Early Career Award No. DE-SC0019168, and the Alfred P. Sloan Foundation through
a Sloan Research Fellowship.
article_number: '104205'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Raimel A
full_name: Medina Ramos, Raimel A
id: CE680B90-D85A-11E9-B684-C920E6697425
last_name: Medina Ramos
orcid: 0000-0002-5383-2869
- first_name: Romain
full_name: Vasseur, Romain
last_name: Vasseur
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: Medina Ramos RA, Vasseur R, Serbyn M. Entanglement transitions from restricted
Boltzmann machines. Physical Review B. 2021;104(10). doi:10.1103/physrevb.104.104205
apa: Medina Ramos, R. A., Vasseur, R., & Serbyn, M. (2021). Entanglement transitions
from restricted Boltzmann machines. Physical Review B. American Physical
Society. https://doi.org/10.1103/physrevb.104.104205
chicago: Medina Ramos, Raimel A, Romain Vasseur, and Maksym Serbyn. “Entanglement
Transitions from Restricted Boltzmann Machines.” Physical Review B. American
Physical Society, 2021. https://doi.org/10.1103/physrevb.104.104205.
ieee: R. A. Medina Ramos, R. Vasseur, and M. Serbyn, “Entanglement transitions from
restricted Boltzmann machines,” Physical Review B, vol. 104, no. 10. American
Physical Society, 2021.
ista: Medina Ramos RA, Vasseur R, Serbyn M. 2021. Entanglement transitions from
restricted Boltzmann machines. Physical Review B. 104(10), 104205.
mla: Medina Ramos, Raimel A., et al. “Entanglement Transitions from Restricted Boltzmann
Machines.” Physical Review B, vol. 104, no. 10, 104205, American Physical
Society, 2021, doi:10.1103/physrevb.104.104205.
short: R.A. Medina Ramos, R. Vasseur, M. Serbyn, Physical Review B 104 (2021).
date_created: 2021-10-02T09:03:42Z
date_published: 2021-09-30T00:00:00Z
date_updated: 2023-08-14T07:24:47Z
day: '30'
department:
- _id: MaSe
doi: 10.1103/physrevb.104.104205
ec_funded: 1
external_id:
arxiv:
- '2107.05735'
isi:
- '000704414400002'
intvolume: ' 104'
isi: 1
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2107.05735
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Entanglement transitions from restricted Boltzmann machines
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 104
year: '2021'
...
---
_id: '10527'
abstract:
- lang: eng
text: We show that in a two-dimensional electron gas with an annular Fermi surface,
long-range Coulomb interactions can lead to unconventional superconductivity by
the Kohn-Luttinger mechanism. Superconductivity is strongly enhanced when the
inner and outer Fermi surfaces are close to each other. The most prevalent state
has chiral p-wave symmetry, but d-wave and extended s-wave pairing are also possible.
We discuss these results in the context of rhombohedral trilayer graphene, where
superconductivity was recently discovered in regimes where the normal state has
an annular Fermi surface. Using realistic parameters, our mechanism can account
for the order of magnitude of Tc, as well as its trends as a function of electron
density and perpendicular displacement field. Moreover, it naturally explains
some of the outstanding puzzles in this material, that include the weak temperature
dependence of the resistivity above Tc, and the proximity of spin singlet superconductivity
to the ferromagnetic phase.
acknowledgement: We thank Yang-Zhi Chou, Andrey Chubukov, Johannes Hofmann, Steve
Kivelson, Sri Raghu, and Sankar das Sarma, Jay Sau, Fengcheng Wu, and Andrea Young
for many stimulating discussions and for their comments on the manuscript. E.B.
thanks S. Chatterjee, T. Wang, and M. Zaletel for a collaboration on a related topic.
A.G. acknowledges support by the European Unions Horizon 2020 research and innovation
program under the Marie Sklodowska-Curie Grant Agreement No. 754411. E.B. and T.H.
were supported by the European Research Council (ERC) under grant HQMAT (Grant Agreement
No. 817799), by the Israel-USA Binational Science Foundation (BSF), and by a Research
grant from Irving and Cherna Moskowitz.
article_number: '247001'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Tobias
full_name: Holder, Tobias
last_name: Holder
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Erez
full_name: Berg, Erez
last_name: Berg
citation:
ama: 'Ghazaryan A, Holder T, Serbyn M, Berg E. Unconventional superconductivity
in systems with annular Fermi surfaces: Application to rhombohedral trilayer graphene.
Physical Review Letters. 2021;127(24). doi:10.1103/physrevlett.127.247001'
apa: 'Ghazaryan, A., Holder, T., Serbyn, M., & Berg, E. (2021). Unconventional
superconductivity in systems with annular Fermi surfaces: Application to rhombohedral
trilayer graphene. Physical Review Letters. American Physical Society.
https://doi.org/10.1103/physrevlett.127.247001'
chicago: 'Ghazaryan, Areg, Tobias Holder, Maksym Serbyn, and Erez Berg. “Unconventional
Superconductivity in Systems with Annular Fermi Surfaces: Application to Rhombohedral
Trilayer Graphene.” Physical Review Letters. American Physical Society,
2021. https://doi.org/10.1103/physrevlett.127.247001.'
ieee: 'A. Ghazaryan, T. Holder, M. Serbyn, and E. Berg, “Unconventional superconductivity
in systems with annular Fermi surfaces: Application to rhombohedral trilayer graphene,”
Physical Review Letters, vol. 127, no. 24. American Physical Society, 2021.'
ista: 'Ghazaryan A, Holder T, Serbyn M, Berg E. 2021. Unconventional superconductivity
in systems with annular Fermi surfaces: Application to rhombohedral trilayer graphene.
Physical Review Letters. 127(24), 247001.'
mla: 'Ghazaryan, Areg, et al. “Unconventional Superconductivity in Systems with
Annular Fermi Surfaces: Application to Rhombohedral Trilayer Graphene.” Physical
Review Letters, vol. 127, no. 24, 247001, American Physical Society, 2021,
doi:10.1103/physrevlett.127.247001.'
short: A. Ghazaryan, T. Holder, M. Serbyn, E. Berg, Physical Review Letters 127
(2021).
date_created: 2021-12-10T07:51:33Z
date_published: 2021-12-09T00:00:00Z
date_updated: 2023-08-14T13:19:13Z
day: '09'
department:
- _id: MaSe
doi: 10.1103/physrevlett.127.247001
ec_funded: 1
external_id:
arxiv:
- '2109.00011'
isi:
- '000923819400004'
intvolume: ' 127'
isi: 1
issue: '24'
keyword:
- general physics and astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2109.00011
month: '12'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- description: News on IST Webpage
relation: press_release
url: https://ist.ac.at/en/news/resolving-the-puzzles-of-graphene-superconductivity/
scopus_import: '1'
status: public
title: 'Unconventional superconductivity in systems with annular Fermi surfaces: Application
to rhombohedral trilayer graphene'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 127
year: '2021'
...
---
_id: '10545'
abstract:
- lang: eng
text: Classical models with complex energy landscapes represent a perspective avenue
for the near-term application of quantum simulators. Until now, many theoretical
works studied the performance of quantum algorithms for models with a unique ground
state. However, when the classical problem is in a so-called clustering phase,
the ground state manifold is highly degenerate. As an example, we consider a 3-XORSAT
model defined on simple hypergraphs. The degeneracy of classical ground state
manifold translates into the emergence of an extensive number of Z2 symmetries,
which remain intact even in the presence of a quantum transverse magnetic field.
We establish a general duality approach that restricts the quantum problem to
a given sector of conserved Z2 charges and use it to study how the outcome of
the quantum adiabatic algorithm depends on the hypergraph geometry. We show that
the tree hypergraph which corresponds to a classically solvable instance of the
3-XORSAT problem features a constant gap, whereas the closed hypergraph encounters
a second-order phase transition with a gap vanishing as a power-law in the problem
size. The duality developed in this work provides a practical tool for studies
of quantum models with classically degenerate energy manifold and reveals potential
connections between glasses and gauge theories.
acknowledgement: We would like to thank S. De Nicola, A. Michaidilis, T. Gulden, Y.
Nez-Fernndez, P. Brighi, and S. Sack for fruitful discussions and valuable feedback
on the manuscript. M.S. acknowledges useful discussions with E. Altman, L. Cugliandolo,
and C. Laumann. We acknowledge support from the European Research Council (ERC)
under the European Union's Horizon 2020 Research and Innovation Programme Grant
Agreement No. 850899.
article_number: '062423'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Raimel A
full_name: Medina Ramos, Raimel A
id: CE680B90-D85A-11E9-B684-C920E6697425
last_name: Medina Ramos
orcid: 0000-0002-5383-2869
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: Medina Ramos RA, Serbyn M. Duality approach to quantum annealing of the 3-variable
exclusive-or satisfiability problem (3-XORSAT). Physical Review A. 2021;104(6).
doi:10.1103/physreva.104.062423
apa: Medina Ramos, R. A., & Serbyn, M. (2021). Duality approach to quantum annealing
of the 3-variable exclusive-or satisfiability problem (3-XORSAT). Physical
Review A. American Physical Society. https://doi.org/10.1103/physreva.104.062423
chicago: Medina Ramos, Raimel A, and Maksym Serbyn. “Duality Approach to Quantum
Annealing of the 3-Variable Exclusive-or Satisfiability Problem (3-XORSAT).” Physical
Review A. American Physical Society, 2021. https://doi.org/10.1103/physreva.104.062423.
ieee: R. A. Medina Ramos and M. Serbyn, “Duality approach to quantum annealing of
the 3-variable exclusive-or satisfiability problem (3-XORSAT),” Physical Review
A, vol. 104, no. 6. American Physical Society, 2021.
ista: Medina Ramos RA, Serbyn M. 2021. Duality approach to quantum annealing of
the 3-variable exclusive-or satisfiability problem (3-XORSAT). Physical Review
A. 104(6), 062423.
mla: Medina Ramos, Raimel A., and Maksym Serbyn. “Duality Approach to Quantum Annealing
of the 3-Variable Exclusive-or Satisfiability Problem (3-XORSAT).” Physical
Review A, vol. 104, no. 6, 062423, American Physical Society, 2021, doi:10.1103/physreva.104.062423.
short: R.A. Medina Ramos, M. Serbyn, Physical Review A 104 (2021).
date_created: 2021-12-14T20:46:07Z
date_published: 2021-12-14T00:00:00Z
date_updated: 2023-08-17T06:22:49Z
day: '14'
department:
- _id: MaSe
doi: 10.1103/physreva.104.062423
ec_funded: 1
external_id:
arxiv:
- '2106.06344'
isi:
- '000753659200004'
intvolume: ' 104'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2106.06344
month: '12'
oa: 1
oa_version: Preprint
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Duality approach to quantum annealing of the 3-variable exclusive-or satisfiability
problem (3-XORSAT)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 104
year: '2021'
...
---
_id: '9760'
abstract:
- lang: eng
text: "The quantum approximate optimization algorithm (QAOA) is a prospective near-term
quantum algorithm due to its modest circuit depth and promising benchmarks. However,
an external parameter optimization required in the QAOA could become a performance
bottleneck. This motivates studies of the optimization landscape and search for
heuristic ways of parameter initialization. In this work we visualize the optimization
landscape of the QAOA applied to the MaxCut problem on random graphs, demonstrating
that random initialization of the QAOA is prone to converging to local minima
with suboptimal performance. We introduce the initialization of QAOA parameters
based on the Trotterized quantum annealing (TQA) protocol, parameterized by the
Trotter time step. We find that the TQA initialization allows to circumvent\r\nthe
issue of false minima for a broad range of time steps, yielding the same performance
as the best result out of an exponentially scaling number of random initializations.
Moreover, we demonstrate that the optimal value of the time step coincides with
the point of proliferation of Trotter errors in quantum annealing. Our results
suggest practical ways of initializing QAOA protocols on near-term quantum devices
and reveal new connections between QAOA and quantum annealing."
acknowledgement: We would like to thank D. Abanin and R. Medina for fruitful discussions
and A. Smith and I. Kim for valuable feedback on the manuscript. We acknowledge
support by the European Research Council (ERC) under the European Union’s Horizon
2020 research and innovation program (Grant Agreement No. 850899).
article_number: '491'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Stefan
full_name: Sack, Stefan
id: dd622248-f6e0-11ea-865d-ce382a1c81a5
last_name: Sack
orcid: 0000-0001-5400-8508
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: Sack S, Serbyn M. Quantum annealing initialization of the quantum approximate
optimization algorithm. Quantum. 2021;5. doi:10.22331/Q-2021-07-01-491
apa: Sack, S., & Serbyn, M. (2021). Quantum annealing initialization of the
quantum approximate optimization algorithm. Quantum. Verein zur Förderung
des Open Access Publizierens in den Quantenwissenschaften. https://doi.org/10.22331/Q-2021-07-01-491
chicago: Sack, Stefan, and Maksym Serbyn. “Quantum Annealing Initialization of the
Quantum Approximate Optimization Algorithm.” Quantum. Verein zur Förderung
des Open Access Publizierens in den Quantenwissenschaften, 2021. https://doi.org/10.22331/Q-2021-07-01-491.
ieee: S. Sack and M. Serbyn, “Quantum annealing initialization of the quantum approximate
optimization algorithm,” Quantum, vol. 5. Verein zur Förderung des Open
Access Publizierens in den Quantenwissenschaften, 2021.
ista: Sack S, Serbyn M. 2021. Quantum annealing initialization of the quantum approximate
optimization algorithm. Quantum. 5, 491.
mla: Sack, Stefan, and Maksym Serbyn. “Quantum Annealing Initialization of the Quantum
Approximate Optimization Algorithm.” Quantum, vol. 5, 491, Verein zur Förderung
des Open Access Publizierens in den Quantenwissenschaften, 2021, doi:10.22331/Q-2021-07-01-491.
short: S. Sack, M. Serbyn, Quantum 5 (2021).
date_created: 2021-08-01T22:01:21Z
date_published: 2021-07-01T00:00:00Z
date_updated: 2023-12-13T14:47:25Z
day: '01'
ddc:
- '530'
department:
- _id: GradSch
- _id: MaSe
doi: 10.22331/Q-2021-07-01-491
ec_funded: 1
external_id:
arxiv:
- '2101.05742'
isi:
- '000669830600001'
file:
- access_level: open_access
checksum: 9706c2bb8e748e9b5b138381995a7f6f
content_type: application/pdf
creator: cchlebak
date_created: 2021-08-06T06:44:31Z
date_updated: 2021-08-06T06:44:31Z
file_id: '9774'
file_name: 2021_Quantum_Sack.pdf
file_size: 2312482
relation: main_file
file_date_updated: 2021-08-06T06:44:31Z
has_accepted_license: '1'
intvolume: ' 5'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Quantum
publication_identifier:
eissn:
- 2521-327X
publication_status: published
publisher: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
quality_controlled: '1'
related_material:
record:
- id: '14622'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Quantum annealing initialization of the quantum approximate optimization algorithm
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2021'
...
---
_id: '9903'
abstract:
- lang: eng
text: Eigenstate thermalization in quantum many-body systems implies that eigenstates
at high energy are similar to random vectors. Identifying systems where at least
some eigenstates are nonthermal is an outstanding question. In this Letter we
show that interacting quantum models that have a nullspace—a degenerate subspace
of eigenstates at zero energy (zero modes), which corresponds to infinite temperature,
provide a route to nonthermal eigenstates. We analytically show the existence
of a zero mode which can be represented as a matrix product state for a certain
class of local Hamiltonians. In the more general case we use a subspace disentangling
algorithm to generate an orthogonal basis of zero modes characterized by increasing
entanglement entropy. We show evidence for an area-law entanglement scaling of
the least-entangled zero mode in the broad parameter regime, leading to a conjecture
that all local Hamiltonians with the nullspace feature zero modes with area-law
entanglement scaling and, as such, break the strong thermalization hypothesis.
Finally, we find zero modes in constrained models and propose a setup for observing
their experimental signatures.
acknowledgement: "We acknowledge useful discussions with V. Gritsev and A. Garkun
and suggestions on implementation of the\r\nPPXPP model by D. Bluvstein. A. M. and
M. S. were supported by the European Research Council (ERC) under\r\nthe European
Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899)"
article_number: '060602'
article_processing_charge: Yes (in subscription journal)
article_type: letter_note
arxiv: 1
author:
- first_name: Volker
full_name: Karle, Volker
id: D7C012AE-D7ED-11E9-95E8-1EC5E5697425
last_name: Karle
orcid: 0000-0002-6963-0129
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Alexios
full_name: Michailidis, Alexios
id: 36EBAD38-F248-11E8-B48F-1D18A9856A87
last_name: Michailidis
orcid: 0000-0002-8443-1064
citation:
ama: Karle V, Serbyn M, Michailidis A. Area-law entangled eigenstates from nullspaces
of local Hamiltonians. Physical Review Letters. 2021;127(6). doi:10.1103/physrevlett.127.060602
apa: Karle, V., Serbyn, M., & Michailidis, A. (2021). Area-law entangled eigenstates
from nullspaces of local Hamiltonians. Physical Review Letters. American
Physical Society. https://doi.org/10.1103/physrevlett.127.060602
chicago: Karle, Volker, Maksym Serbyn, and Alexios Michailidis. “Area-Law Entangled
Eigenstates from Nullspaces of Local Hamiltonians.” Physical Review Letters.
American Physical Society, 2021. https://doi.org/10.1103/physrevlett.127.060602.
ieee: V. Karle, M. Serbyn, and A. Michailidis, “Area-law entangled eigenstates from
nullspaces of local Hamiltonians,” Physical Review Letters, vol. 127, no.
6. American Physical Society, 2021.
ista: Karle V, Serbyn M, Michailidis A. 2021. Area-law entangled eigenstates from
nullspaces of local Hamiltonians. Physical Review Letters. 127(6), 060602.
mla: Karle, Volker, et al. “Area-Law Entangled Eigenstates from Nullspaces of Local
Hamiltonians.” Physical Review Letters, vol. 127, no. 6, 060602, American
Physical Society, 2021, doi:10.1103/physrevlett.127.060602.
short: V. Karle, M. Serbyn, A. Michailidis, Physical Review Letters 127 (2021).
date_created: 2021-08-13T09:27:39Z
date_published: 2021-08-06T00:00:00Z
date_updated: 2023-08-11T10:43:27Z
day: '06'
ddc:
- '539'
department:
- _id: MaSe
- _id: GradSch
- _id: MiLe
doi: 10.1103/physrevlett.127.060602
ec_funded: 1
external_id:
arxiv:
- '2102.13633'
isi:
- '000684276000002'
file:
- access_level: open_access
checksum: 51218f302dcef99d90d1209809fcc874
content_type: application/pdf
creator: mserbyn
date_created: 2021-08-13T09:28:08Z
date_updated: 2021-08-13T09:28:08Z
file_id: '9904'
file_name: PhysRevLett.127.060602_SOM.pdf
file_size: 5064231
relation: main_file
success: 1
file_date_updated: 2021-08-13T09:28:08Z
has_accepted_license: '1'
intvolume: ' 127'
isi: 1
issue: '6'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Area-law entangled eigenstates from nullspaces of local Hamiltonians
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 127
year: '2021'
...
---
_id: '9960'
abstract:
- lang: eng
text: The control of many-body quantum dynamics in complex systems is a key challenge
in the quest to reliably produce and manipulate large-scale quantum entangled
states. Recently, quench experiments in Rydberg atom arrays [Bluvstein et al.
Science 371, 1355 (2021)] demonstrated that coherent revivals associated with
quantum many-body scars can be stabilized by periodic driving, generating stable
subharmonic responses over a wide parameter regime. We analyze a simple, related
model where these phenomena originate from spatiotemporal ordering in an effective
Floquet unitary, corresponding to discrete time-crystalline behavior in a prethermal
regime. Unlike conventional discrete time crystals, the subharmonic response exists
only for Néel-like initial states, associated with quantum scars. We predict robustness
to perturbations and identify emergent timescales that could be observed in future
experiments. Our results suggest a route to controlling entanglement in interacting
quantum systems by combining periodic driving with many-body scars.
acknowledgement: We thank Dmitry Abanin, Ehud Altman, Iris Cong, Sepehr Ebadi, Alex
Keesling, Harry Levine, Ahmed Omran, Hannes Pichler, Rhine Samajdar, Guilia Semeghini,
Tout Wang, Norman Yao, and Harry Zhou or stimulating discussions. We acknowledge
support from the Center for Ultracold Atoms, the National Science Foundation, the
Vannevar Bush Faculty Fellowship, the U.S. Department of Energy, the Army Research
Office MURI, and the DARPA ONISQ program (M. L., N. M, W. W. H., D. B.); the European
Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation
Programme Grant Agreement No. 850899 (A. M. and M. S.); the Department of Energy
Computational Science Graduate Fellowship under Awards No. DESC0021110 (N. M.);
the Moore Foundation EPiQS initiative Grant No. GBMF4306, the National University
of Singapore (NUS) Development Grant AY2019/2020 and the Stanford Institute for
Theoretical Physics (W. W. H.); the NSF Graduate Research Fellowship Program (Grant
No. DGE1745303) and The Fannie and John Hertz Foundation (D. B.); the Miller Institute
for Basic Research in Science (S. C.); DOE Quantum Systems Accelerator – Contract
No. 7568717; and DOE Programmable Quantum Simulators for Lattice Gauge Theories
and Gauge-Gravity Correspondence – Grant No. DE-SC0021013.
article_number: '090602'
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: N.
full_name: Maskara, N.
last_name: Maskara
- first_name: Alexios
full_name: Michailidis, Alexios
id: 36EBAD38-F248-11E8-B48F-1D18A9856A87
last_name: Michailidis
orcid: 0000-0002-8443-1064
- first_name: W. W.
full_name: Ho, W. W.
last_name: Ho
- first_name: D.
full_name: Bluvstein, D.
last_name: Bluvstein
- first_name: S.
full_name: Choi, S.
last_name: Choi
- first_name: M. D.
full_name: Lukin, M. D.
last_name: Lukin
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: 'Maskara N, Michailidis A, Ho WW, et al. Discrete time-crystalline order enabled
by quantum many-body scars: Entanglement steering via periodic driving. Physical
Review Letters. 2021;127(9). doi:10.1103/PhysRevLett.127.090602'
apa: 'Maskara, N., Michailidis, A., Ho, W. W., Bluvstein, D., Choi, S., Lukin, M.
D., & Serbyn, M. (2021). Discrete time-crystalline order enabled by quantum
many-body scars: Entanglement steering via periodic driving. Physical Review
Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.127.090602'
chicago: 'Maskara, N., Alexios Michailidis, W. W. Ho, D. Bluvstein, S. Choi, M.
D. Lukin, and Maksym Serbyn. “Discrete Time-Crystalline Order Enabled by Quantum
Many-Body Scars: Entanglement Steering via Periodic Driving.” Physical Review
Letters. American Physical Society, 2021. https://doi.org/10.1103/PhysRevLett.127.090602.'
ieee: 'N. Maskara et al., “Discrete time-crystalline order enabled by quantum
many-body scars: Entanglement steering via periodic driving,” Physical Review
Letters, vol. 127, no. 9. American Physical Society, 2021.'
ista: 'Maskara N, Michailidis A, Ho WW, Bluvstein D, Choi S, Lukin MD, Serbyn M.
2021. Discrete time-crystalline order enabled by quantum many-body scars: Entanglement
steering via periodic driving. Physical Review Letters. 127(9), 090602.'
mla: 'Maskara, N., et al. “Discrete Time-Crystalline Order Enabled by Quantum Many-Body
Scars: Entanglement Steering via Periodic Driving.” Physical Review Letters,
vol. 127, no. 9, 090602, American Physical Society, 2021, doi:10.1103/PhysRevLett.127.090602.'
short: N. Maskara, A. Michailidis, W.W. Ho, D. Bluvstein, S. Choi, M.D. Lukin, M.
Serbyn, Physical Review Letters 127 (2021).
date_created: 2021-08-28T08:08:58Z
date_published: 2021-08-27T00:00:00Z
date_updated: 2023-08-11T10:57:51Z
day: '27'
department:
- _id: MaSe
doi: 10.1103/PhysRevLett.127.090602
ec_funded: 1
external_id:
arxiv:
- '2102.13160'
isi:
- '000692200100002'
intvolume: ' 127'
isi: 1
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2102.13160
month: '08'
oa: 1
oa_version: Submitted Version
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
call_identifier: H2020
grant_number: '850899'
name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: 'Discrete time-crystalline order enabled by quantum many-body scars: Entanglement
steering via periodic driving'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 127
year: '2021'
...