---
_id: '14845'
abstract:
- lang: eng
text: We study a linear rotor in a bosonic bath within the angulon formalism. Our
focus is on systems where isotropic or anisotropic impurity-boson interactions
support a shallow bound state. To study the fate of the angulon in the vicinity
of bound-state formation, we formulate a beyond-linear-coupling angulon Hamiltonian.
First, we use it to study attractive, spherically symmetric impurity-boson interactions
for which the linear rotor can be mapped onto a static impurity. The well-known
polaron formalism provides an adequate description in this limit. Second, we consider
anisotropic potentials, and show that the presence of a shallow bound state with
pronounced anisotropic character leads to a many-body instability that washes
out the angulon dynamics.
acknowledgement: "We would like to thank G. Bighin, I. Cherepanov, E. Paerschke, and
E. Yakaboylu for insightful discussions on a wide range of topics. This work has
been supported by the European Research Council (ERC) Starting Grant No. 801770
(ANGULON). A.G. and A.G.V. acknowledge support from the European Union’s Horizon
2020 research and innovation\r\nprogram under the Marie Skłodowska-Curie Grant Agreement
No. 754411. Numerical calculations were performed on the Euler cluster managed by
the HPC team at ETH Zurich.\r\nR.S. acknowledges support by the Deutsche Forschungsgemeinschaft
under Germany’s Excellence Strategy Grant No. EXC 2181/1-390900948 (the Heidelberg
STRUCTURES Excellence Cluster). T.D. acknowledges support from the Isaac Newton
Studentship and the Science and Technology Facilities Council under Grant No. ST/V50659X/1."
article_number: '014102'
article_processing_charge: No
article_type: original
author:
- first_name: Tibor
full_name: Dome, Tibor
id: 7e3293e2-b9dc-11ee-97a9-cd73400f6994
last_name: Dome
orcid: 0000-0003-2586-3702
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Laleh
full_name: Safari, Laleh
id: 3C325E5E-F248-11E8-B48F-1D18A9856A87
last_name: Safari
- first_name: Richard
full_name: Schmidt, Richard
last_name: Schmidt
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. Linear rotor
in an ideal Bose gas near the threshold for binding. Physical Review B.
2024;109(1). doi:10.1103/PhysRevB.109.014102
apa: Dome, T., Volosniev, A., Ghazaryan, A., Safari, L., Schmidt, R., & Lemeshko,
M. (2024). Linear rotor in an ideal Bose gas near the threshold for binding. Physical
Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.109.014102
chicago: Dome, Tibor, Artem Volosniev, Areg Ghazaryan, Laleh Safari, Richard Schmidt,
and Mikhail Lemeshko. “Linear Rotor in an Ideal Bose Gas near the Threshold for
Binding.” Physical Review B. American Physical Society, 2024. https://doi.org/10.1103/PhysRevB.109.014102.
ieee: T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, and M. Lemeshko,
“Linear rotor in an ideal Bose gas near the threshold for binding,” Physical
Review B, vol. 109, no. 1. American Physical Society, 2024.
ista: Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. 2024. Linear
rotor in an ideal Bose gas near the threshold for binding. Physical Review B.
109(1), 014102.
mla: Dome, Tibor, et al. “Linear Rotor in an Ideal Bose Gas near the Threshold for
Binding.” Physical Review B, vol. 109, no. 1, 014102, American Physical
Society, 2024, doi:10.1103/PhysRevB.109.014102.
short: T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, M. Lemeshko,
Physical Review B 109 (2024).
date_created: 2024-01-21T23:00:57Z
date_published: 2024-01-01T00:00:00Z
date_updated: 2024-01-23T10:51:09Z
day: '01'
department:
- _id: MiLe
doi: 10.1103/PhysRevB.109.014102
ec_funded: 1
intvolume: ' 109'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
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: Linear rotor in an ideal Bose gas near the threshold for binding
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2024'
...
---
_id: '15003'
abstract:
- lang: eng
text: Magnetic frustration allows to access novel and intriguing properties of magnetic
systems and has been explored mainly in planar triangular-like arrays of magnetic
ions. In this work, we describe the phosphide Ce6Ni6P17, where the Ce+3 ions accommodate
in a body-centered cubic lattice of Ce6 regular octahedra. From measurements of
magnetization, specific heat, and resistivity, we determine a rich phase diagram
as a function of temperature and magnetic field in which different magnetic phases
are found. Besides clear evidence of magnetic frustration is obtained from entropy
analysis. At zero field, a second-order antiferromagnetic transition occurs at
TN1≈1 K followed by a first-order transition at TN2≈0.45 K. With magnetic field
new magnetic phases appear, including a weakly first-order transition which ends
in a classical critical point and a third magnetic phase. We also study the exact
solution of the spin-1/2 Heisenberg model in an octahedron which allows us a qualitative
understanding of the phase diagram and compare with the experimental results.
acknowledgement: "The authors thank Bernardo Pentke for the SEM micrographs (Departamento
Fisicoquímica de Materiales CABCNEA). We are indebted to Julián Sereni for useful
discussions. D. G. F. acknowledges financial support provided by Agencia I+D+i,
Argentina, Grant No. PICT-2021-I-INVI00852 and Universidad Nacional de Cuyo (SIIP)
Grant No. 06/C018-T1. A. A. A. acknowledges financial support provided by PICT 2018-01546
and PICT 2020A-03661 of the\r\nAgencia I+D+i. "
article_number: '054405'
article_processing_charge: No
article_type: original
author:
- first_name: D. G.
full_name: Franco, D. G.
last_name: Franco
- first_name: R.
full_name: Avalos, R.
last_name: Avalos
- first_name: D.
full_name: Hafner, D.
last_name: Hafner
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: Yu
full_name: Prots, Yu
last_name: Prots
- first_name: O.
full_name: Stockert, O.
last_name: Stockert
- first_name: A.
full_name: Hoser, A.
last_name: Hoser
- first_name: P. J.W.
full_name: Moll, P. J.W.
last_name: Moll
- first_name: M.
full_name: Brando, M.
last_name: Brando
- first_name: A. A.
full_name: Aligia, A. A.
last_name: Aligia
- first_name: C.
full_name: Geibel, C.
last_name: Geibel
citation:
ama: Franco DG, Avalos R, Hafner D, et al. Frustrated magnetism in octahedra-based
Ce6 Ni6 P17. Physical Review B. 2024;109(5). doi:10.1103/PhysRevB.109.054405
apa: Franco, D. G., Avalos, R., Hafner, D., Modic, K. A., Prots, Y., Stockert, O.,
… Geibel, C. (2024). Frustrated magnetism in octahedra-based Ce6 Ni6 P17. Physical
Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.109.054405
chicago: Franco, D. G., R. Avalos, D. Hafner, Kimberly A Modic, Yu Prots, O. Stockert,
A. Hoser, et al. “Frustrated Magnetism in Octahedra-Based Ce6 Ni6 P17.” Physical
Review B. American Physical Society, 2024. https://doi.org/10.1103/PhysRevB.109.054405.
ieee: D. G. Franco et al., “Frustrated magnetism in octahedra-based Ce6 Ni6
P17,” Physical Review B, vol. 109, no. 5. American Physical Society, 2024.
ista: Franco DG, Avalos R, Hafner D, Modic KA, Prots Y, Stockert O, Hoser A, Moll
PJW, Brando M, Aligia AA, Geibel C. 2024. Frustrated magnetism in octahedra-based
Ce6 Ni6 P17. Physical Review B. 109(5), 054405.
mla: Franco, D. G., et al. “Frustrated Magnetism in Octahedra-Based Ce6 Ni6 P17.”
Physical Review B, vol. 109, no. 5, 054405, American Physical Society,
2024, doi:10.1103/PhysRevB.109.054405.
short: D.G. Franco, R. Avalos, D. Hafner, K.A. Modic, Y. Prots, O. Stockert, A.
Hoser, P.J.W. Moll, M. Brando, A.A. Aligia, C. Geibel, Physical Review B 109 (2024).
date_created: 2024-02-18T23:01:01Z
date_published: 2024-02-01T00:00:00Z
date_updated: 2024-02-26T09:50:10Z
day: '01'
department:
- _id: KiMo
doi: 10.1103/PhysRevB.109.054405
intvolume: ' 109'
issue: '5'
language:
- iso: eng
month: '02'
oa_version: None
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: Frustrated magnetism in octahedra-based Ce6 Ni6 P17
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2024'
...
---
_id: '15052'
abstract:
- lang: eng
text: "Substrate induces mechanical strain on perovskite devices, which can result
in alterations to its lattice dynamics and thermal transport. Herein, we have
performed a theoretical investigation on the anharmonic lattice dynamics and thermal
property of perovskite Rb2SnBr6 and Cs2SnBr6 under strains using perturbation
theory up to the fourth-order terms and the unified thermal transport theory.
We demonstrate a pronounced hardening of low-frequency optical phonons as temperature
increases, indicating strong lattice anharmonicity and the necessity of adopting
temperature-dependent interatomic force constants in the lattice thermal conductivity
(\r\nκL) calculations. It is found that the low-lying optical phonon modes of
Rb2SnBr6 are extremely soft and their phonon energies are almost strain independent,
which ultimately lead to a lower \r\nκL and a weaker strain dependence than Cs2SnBr6.
We further reveal that the strain dependence of these phonon modes in the A2XB6-type
perovskites weakens as their ibrational frequency decreases. This study deepens
the understanding of lattice thermal transport in perovskites A2XB6 and provides
a perspective on the selection of materials that meet the expected thermal behaviors
in practical applications."
acknowledgement: "This work is supported by the Research Grants Council of Hong Kong
(C7002-22Y and 17318122). The authors are grateful for the research computing facilities
offered by\r\nITS, HKU. Z.Z. acknowledges the European Union’s Horizon 2020 research
and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 101034413."
article_number: '054305'
article_processing_charge: No
article_type: original
author:
- first_name: Ruihuan
full_name: Cheng, Ruihuan
last_name: Cheng
- first_name: Zezhu
full_name: Zeng, Zezhu
id: 54a2c730-803f-11ed-ab7e-95b29d2680e7
last_name: Zeng
- first_name: Chen
full_name: Wang, Chen
last_name: Wang
- first_name: Niuchang
full_name: Ouyang, Niuchang
last_name: Ouyang
- first_name: Yue
full_name: Chen, Yue
last_name: Chen
citation:
ama: Cheng R, Zeng Z, Wang C, Ouyang N, Chen Y. Impact of strain-insensitive low-frequency
phonon modes on lattice thermal transport in AxXB6-type perovskites. Physical
Review B. 2024;109(5). doi:10.1103/physrevb.109.054305
apa: Cheng, R., Zeng, Z., Wang, C., Ouyang, N., & Chen, Y. (2024). Impact of
strain-insensitive low-frequency phonon modes on lattice thermal transport in
AxXB6-type perovskites. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.109.054305
chicago: Cheng, Ruihuan, Zezhu Zeng, Chen Wang, Niuchang Ouyang, and Yue Chen. “Impact
of Strain-Insensitive Low-Frequency Phonon Modes on Lattice Thermal Transport
in AxXB6-Type Perovskites.” Physical Review B. American Physical Society,
2024. https://doi.org/10.1103/physrevb.109.054305.
ieee: R. Cheng, Z. Zeng, C. Wang, N. Ouyang, and Y. Chen, “Impact of strain-insensitive
low-frequency phonon modes on lattice thermal transport in AxXB6-type perovskites,”
Physical Review B, vol. 109, no. 5. American Physical Society, 2024.
ista: Cheng R, Zeng Z, Wang C, Ouyang N, Chen Y. 2024. Impact of strain-insensitive
low-frequency phonon modes on lattice thermal transport in AxXB6-type perovskites.
Physical Review B. 109(5), 054305.
mla: Cheng, Ruihuan, et al. “Impact of Strain-Insensitive Low-Frequency Phonon Modes
on Lattice Thermal Transport in AxXB6-Type Perovskites.” Physical Review B,
vol. 109, no. 5, 054305, American Physical Society, 2024, doi:10.1103/physrevb.109.054305.
short: R. Cheng, Z. Zeng, C. Wang, N. Ouyang, Y. Chen, Physical Review B 109 (2024).
date_created: 2024-03-04T07:41:23Z
date_published: 2024-02-14T00:00:00Z
date_updated: 2024-03-04T07:48:55Z
day: '14'
department:
- _id: BiCh
doi: 10.1103/physrevb.109.054305
ec_funded: 1
intvolume: ' 109'
issue: '5'
language:
- iso: eng
month: '02'
oa_version: None
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
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: Impact of strain-insensitive low-frequency phonon modes on lattice thermal
transport in AxXB6-type perovskites
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2024'
...
---
_id: '14320'
abstract:
- lang: eng
text: The development of two-dimensional materials has resulted in a diverse range
of novel, high-quality compounds with increasing complexity. A key requirement
for a comprehensive quantitative theory is the accurate determination of these
materials' band structure parameters. However, this task is challenging due to
the intricate band structures and the indirect nature of experimental probes.
In this work, we introduce a general framework to derive band structure parameters
from experimental data using deep neural networks. We applied our method to the
penetration field capacitance measurement of trilayer graphene, an effective probe
of its density of states. First, we demonstrate that a trained deep network gives
accurate predictions for the penetration field capacitance as a function of tight-binding
parameters. Next, we use the fast and accurate predictions from the trained network
to automatically determine tight-binding parameters directly from experimental
data, with extracted parameters being in a good agreement with values in the literature.
We conclude by discussing potential applications of our method to other materials
and experimental techniques beyond penetration field capacitance.
acknowledgement: A.F.Y. acknowledges primary support from the Department of Energy
under award DE-SC0020043, and additional support from the Gordon and Betty Moore
Foundation under award GBMF9471 for group operations.
article_number: '125411'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Paul M
full_name: Henderson, Paul M
id: 13C09E74-18D9-11E9-8878-32CFE5697425
last_name: Henderson
orcid: 0000-0002-5198-7445
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Alexander A.
full_name: Zibrov, Alexander A.
last_name: Zibrov
- first_name: Andrea F.
full_name: Young, Andrea F.
last_name: Young
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: 'Henderson PM, Ghazaryan A, Zibrov AA, Young AF, Serbyn M. Deep learning extraction
of band structure parameters from density of states: A case study on trilayer
graphene. Physical Review B. 2023;108(12). doi:10.1103/physrevb.108.125411'
apa: 'Henderson, P. M., Ghazaryan, A., Zibrov, A. A., Young, A. F., & Serbyn,
M. (2023). Deep learning extraction of band structure parameters from density
of states: A case study on trilayer graphene. Physical Review B. American
Physical Society. https://doi.org/10.1103/physrevb.108.125411'
chicago: 'Henderson, Paul M, Areg Ghazaryan, Alexander A. Zibrov, Andrea F. Young,
and Maksym Serbyn. “Deep Learning Extraction of Band Structure Parameters from
Density of States: A Case Study on Trilayer Graphene.” Physical Review B.
American Physical Society, 2023. https://doi.org/10.1103/physrevb.108.125411.'
ieee: 'P. M. Henderson, A. Ghazaryan, A. A. Zibrov, A. F. Young, and M. Serbyn,
“Deep learning extraction of band structure parameters from density of states:
A case study on trilayer graphene,” Physical Review B, vol. 108, no. 12.
American Physical Society, 2023.'
ista: 'Henderson PM, Ghazaryan A, Zibrov AA, Young AF, Serbyn M. 2023. Deep learning
extraction of band structure parameters from density of states: A case study on
trilayer graphene. Physical Review B. 108(12), 125411.'
mla: 'Henderson, Paul M., et al. “Deep Learning Extraction of Band Structure Parameters
from Density of States: A Case Study on Trilayer Graphene.” Physical Review
B, vol. 108, no. 12, 125411, American Physical Society, 2023, doi:10.1103/physrevb.108.125411.'
short: P.M. Henderson, A. Ghazaryan, A.A. Zibrov, A.F. Young, M. Serbyn, Physical
Review B 108 (2023).
date_created: 2023-09-12T07:12:12Z
date_published: 2023-09-15T00:00:00Z
date_updated: 2023-09-20T09:38:24Z
day: '15'
department:
- _id: MaSe
- _id: ChLa
- _id: MiLe
doi: 10.1103/physrevb.108.125411
external_id:
arxiv:
- '2210.06310'
intvolume: ' 108'
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2210.06310
month: '09'
oa: 1
oa_version: Preprint
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: 'Deep learning extraction of band structure parameters from density of states:
A case study on trilayer graphene'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 108
year: '2023'
...
---
_id: '14406'
abstract:
- lang: eng
text: "Recently, a concept of generalized multifractality, which characterizes fluctuations
and correlations of critical eigenstates, was introduced and explored for all
10 symmetry classes of disordered systems. Here, by using the nonlinear sigma-model
(\r\nNL\r\nσ\r\nM\r\n) field theory, we extend the theory of generalized multifractality
to boundaries of systems at criticality. Our numerical simulations on two-dimensional
systems of symmetry classes A, C, and AII fully confirm the analytical predictions
of pure-scaling observables and Weyl symmetry relations between critical exponents
of surface generalized multifractality. This demonstrates the validity of the
\r\nNL\r\nσ\r\nM\r\n for the description of Anderson-localization critical phenomena,
not only in the bulk but also on the boundary. The critical exponents strongly
violate generalized parabolicity, in analogy with earlier results for the bulk,
corroborating the conclusion that the considered Anderson-localization critical
points are not described by conformal field theories. We further derive relations
between generalized surface multifractal spectra and linear combinations of Lyapunov
exponents of a strip in quasi-one-dimensional geometry, which hold under the assumption
of invariance with respect to a logarithmic conformal map. Our numerics demonstrate
that these relations hold with an excellent accuracy. Taken together, our results
indicate an intriguing situation: the conformal invariance is broken but holds
partially at critical points of Anderson localization."
acknowledgement: "We thank Ilya Gruzberg for many illuminating discussions. S.S.B.,
J.F.K., and A.D.M. acknowledge support by the Deutsche Forschungsgemeinschaft (DFG)
via the Grant\r\nNo. MI 658/14-1. I.S.B. acknowledges support from Russian Science
Foundation (Grant No. 22-42-04416)."
article_number: '104205'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Serafim
full_name: Babkin, Serafim
id: 41e64307-6672-11ee-b9ad-cc7a0075a479
last_name: Babkin
orcid: 0009-0003-7382-8036
- first_name: Jonas F.
full_name: Karcher, Jonas F.
last_name: Karcher
- first_name: Igor S.
full_name: Burmistrov, Igor S.
last_name: Burmistrov
- first_name: Alexander D.
full_name: Mirlin, Alexander D.
last_name: Mirlin
citation:
ama: Babkin S, Karcher JF, Burmistrov IS, Mirlin AD. Generalized surface multifractality
in two-dimensional disordered systems. Physical Review B. 2023;108(10).
doi:10.1103/PhysRevB.108.104205
apa: Babkin, S., Karcher, J. F., Burmistrov, I. S., & Mirlin, A. D. (2023).
Generalized surface multifractality in two-dimensional disordered systems. Physical
Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.108.104205
chicago: Babkin, Serafim, Jonas F. Karcher, Igor S. Burmistrov, and Alexander D.
Mirlin. “Generalized Surface Multifractality in Two-Dimensional Disordered Systems.”
Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/PhysRevB.108.104205.
ieee: S. Babkin, J. F. Karcher, I. S. Burmistrov, and A. D. Mirlin, “Generalized
surface multifractality in two-dimensional disordered systems,” Physical Review
B, vol. 108, no. 10. American Physical Society, 2023.
ista: Babkin S, Karcher JF, Burmistrov IS, Mirlin AD. 2023. Generalized surface
multifractality in two-dimensional disordered systems. Physical Review B. 108(10),
104205.
mla: Babkin, Serafim, et al. “Generalized Surface Multifractality in Two-Dimensional
Disordered Systems.” Physical Review B, vol. 108, no. 10, 104205, American
Physical Society, 2023, doi:10.1103/PhysRevB.108.104205.
short: S. Babkin, J.F. Karcher, I.S. Burmistrov, A.D. Mirlin, Physical Review B
108 (2023).
date_created: 2023-10-08T22:01:17Z
date_published: 2023-09-01T00:00:00Z
date_updated: 2023-10-09T07:09:30Z
day: '01'
department:
- _id: MaSe
doi: 10.1103/PhysRevB.108.104205
external_id:
arxiv:
- '2306.09455'
intvolume: ' 108'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2306.09455
month: '09'
oa: 1
oa_version: Preprint
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: Generalized surface multifractality in two-dimensional disordered systems
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 108
year: '2023'
...
---
_id: '14605'
abstract:
- lang: eng
text: The phonon transport mechanisms and ultralow lattice thermal conductivities
(κL) in silver halide AgX (X=Cl,Br,I) compounds are not yet well understood. Herein,
we study the lattice dynamics and thermal property of AgX under the framework
of perturbation theory and the two-channel Wigner thermal transport model based
on accurate machine learning potentials. We find that an accurate extraction of
the third-order atomic force constants from largely displaced configurations is
significant for the calculation of the κL of AgX, and the coherence thermal transport
is also non-negligible. In AgI, however, the calculated κL still considerably
overestimates the experimental values even including four-phonon scatterings.
Molecular dynamics (MD) simulations using machine learning potential suggest an
important role of the higher-than-fourth-order lattice anharmonicity in the low-frequency
phonon linewidths of AgI at room temperature, which can be related to the simultaneous
restrictions of the three- and four-phonon phase spaces. The κL of AgI calculated
using MD phonon lifetimes including full-order lattice anharmonicity shows a better
agreement with experiments.
acknowledgement: This work is supported by the Research Grants Council of Hong Kong
(Grants No. 17318122 and No. 17306721). The authors are grateful for the research
computing facilities offered by ITS, HKU. Z.Z. acknowledges the European Union’s
Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant
Agreement No. 101034413.
article_number: '174302'
article_processing_charge: No
article_type: original
author:
- first_name: Niuchang
full_name: Ouyang, Niuchang
last_name: Ouyang
- first_name: Zezhu
full_name: Zeng, Zezhu
id: 54a2c730-803f-11ed-ab7e-95b29d2680e7
last_name: Zeng
- first_name: Chen
full_name: Wang, Chen
last_name: Wang
- first_name: Qi
full_name: Wang, Qi
last_name: Wang
- first_name: Yue
full_name: Chen, Yue
last_name: Chen
citation:
ama: Ouyang N, Zeng Z, Wang C, Wang Q, Chen Y. Role of high-order lattice anharmonicity
in the phonon thermal transport of silver halide AgX (X=Cl,Br, I). Physical
Review B. 2023;108(17). doi:10.1103/PhysRevB.108.174302
apa: Ouyang, N., Zeng, Z., Wang, C., Wang, Q., & Chen, Y. (2023). Role of high-order
lattice anharmonicity in the phonon thermal transport of silver halide AgX (X=Cl,Br,
I). Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.108.174302
chicago: Ouyang, Niuchang, Zezhu Zeng, Chen Wang, Qi Wang, and Yue Chen. “Role of
High-Order Lattice Anharmonicity in the Phonon Thermal Transport of Silver Halide
AgX (X=Cl,Br, I).” Physical Review B. American Physical Society, 2023.
https://doi.org/10.1103/PhysRevB.108.174302.
ieee: N. Ouyang, Z. Zeng, C. Wang, Q. Wang, and Y. Chen, “Role of high-order lattice
anharmonicity in the phonon thermal transport of silver halide AgX (X=Cl,Br, I),”
Physical Review B, vol. 108, no. 17. American Physical Society, 2023.
ista: Ouyang N, Zeng Z, Wang C, Wang Q, Chen Y. 2023. Role of high-order lattice
anharmonicity in the phonon thermal transport of silver halide AgX (X=Cl,Br, I).
Physical Review B. 108(17), 174302.
mla: Ouyang, Niuchang, et al. “Role of High-Order Lattice Anharmonicity in the Phonon
Thermal Transport of Silver Halide AgX (X=Cl,Br, I).” Physical Review B,
vol. 108, no. 17, 174302, American Physical Society, 2023, doi:10.1103/PhysRevB.108.174302.
short: N. Ouyang, Z. Zeng, C. Wang, Q. Wang, Y. Chen, Physical Review B 108 (2023).
date_created: 2023-11-26T23:00:54Z
date_published: 2023-11-01T00:00:00Z
date_updated: 2023-11-28T07:48:55Z
day: '01'
department:
- _id: BiCh
doi: 10.1103/PhysRevB.108.174302
ec_funded: 1
intvolume: ' 108'
issue: '17'
language:
- iso: eng
month: '11'
oa_version: None
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
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: Role of high-order lattice anharmonicity in the phonon thermal transport of
silver halide AgX (X=Cl,Br, I)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 108
year: '2023'
...
---
_id: '14690'
abstract:
- lang: eng
text: Generalized multifractality characterizes system size dependence of pure scaling
local observables at Anderson transitions in all 10 symmetry classes of disordered
systems. Recently, the concept of generalized multifractality has been extended
to boundaries of critical disordered noninteracting systems. Here we study the
generalized boundary multifractality in the presence of electron-electron interaction,
focusing on the spin quantum Hall symmetry class (class C). Employing the two-loop
renormalization group analysis within the Finkel'stein nonlinear sigma model,
we compute the anomalous dimensions of the pure scaling operators located at the
boundary of the system. We find that generalized boundary multifractal exponents
are twice larger than their bulk counterparts. Exact symmetry relations between
generalized boundary multifractal exponents in the case of noninteracting systems
are explicitly broken by the interaction.
acknowledgement: The authors are grateful to J. Karcher and A. Mirlin for collaboration
on the related project. We thank I. Gruzberg and A. Mirlin for useful discussions
and comments. I.S.B. is grateful to M. Parfenov and P. Ostrovsky for collaboration
on the related project. The research was supported by Russian Science Foundation
(Grant No. 22-42-04416).
article_number: '205429'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Serafim
full_name: Babkin, Serafim
id: 41e64307-6672-11ee-b9ad-cc7a0075a479
last_name: Babkin
orcid: 0009-0003-7382-8036
- first_name: I
full_name: Burmistrov, I
last_name: Burmistrov
citation:
ama: Babkin S, Burmistrov I. Boundary multifractality in the spin quantum Hall symmetry
class with interaction. Physical Review B. 2023;108(20). doi:10.1103/PhysRevB.108.205429
apa: Babkin, S., & Burmistrov, I. (2023). Boundary multifractality in the spin
quantum Hall symmetry class with interaction. Physical Review B. American
Physical Society. https://doi.org/10.1103/PhysRevB.108.205429
chicago: Babkin, Serafim, and I Burmistrov. “Boundary Multifractality in the Spin
Quantum Hall Symmetry Class with Interaction.” Physical Review B. American
Physical Society, 2023. https://doi.org/10.1103/PhysRevB.108.205429.
ieee: S. Babkin and I. Burmistrov, “Boundary multifractality in the spin quantum
Hall symmetry class with interaction,” Physical Review B, vol. 108, no.
20. American Physical Society, 2023.
ista: Babkin S, Burmistrov I. 2023. Boundary multifractality in the spin quantum
Hall symmetry class with interaction. Physical Review B. 108(20), 205429.
mla: Babkin, Serafim, and I. Burmistrov. “Boundary Multifractality in the Spin Quantum
Hall Symmetry Class with Interaction.” Physical Review B, vol. 108, no.
20, 205429, American Physical Society, 2023, doi:10.1103/PhysRevB.108.205429.
short: S. Babkin, I. Burmistrov, Physical Review B 108 (2023).
date_created: 2023-12-17T23:00:53Z
date_published: 2023-11-15T00:00:00Z
date_updated: 2023-12-18T08:45:28Z
day: '15'
department:
- _id: MaSe
doi: 10.1103/PhysRevB.108.205429
external_id:
arxiv:
- '2308.16852'
intvolume: ' 108'
issue: '20'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2308.16852'
month: '11'
oa: 1
oa_version: Preprint
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: Boundary multifractality in the spin quantum Hall symmetry class with interaction
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 108
year: '2023'
...
---
_id: '13138'
abstract:
- lang: eng
text: "We consider the spin-\r\n1\r\n2\r\n Heisenberg chain (XXX model) weakly perturbed
away from integrability by an isotropic next-to-nearest neighbor exchange interaction.
Recently, it was conjectured that this model possesses an infinite tower of quasiconserved
integrals of motion (charges) [D. Kurlov et al., Phys. Rev. B 105, 104302 (2022)].
In this work we first test this conjecture by investigating how the norm of the
adiabatic gauge potential (AGP) scales with the system size, which is known to
be a remarkably accurate measure of chaos. We find that for the perturbed XXX
chain the behavior of the AGP norm corresponds to neither an integrable nor a
chaotic regime, which supports the conjectured quasi-integrability of the model.
We then prove the conjecture and explicitly construct the infinite set of quasiconserved
charges. Our proof relies on the fact that the XXX chain perturbed by next-to-nearest
exchange interaction can be viewed as a truncation of an integrable long-range
deformation of the Heisenberg spin chain."
acknowledgement: "The numerical computations in this work were performed using QuSpin
[83, 84]. We acknowledge useful discussions with Igor Aleiner, Boris Altshuler,
Jacopo de Nardis, Anatoli Polkovnikov, and Gora Shlyapnikov. We thank Piotr Sierant
and Dario Rosa for drawing our attention to Refs. [31, 42, 46] and Ref. [47], respectively.
We are grateful to an anonymous referee for very useful comments and for drawing
our attention to Refs. [80, 81]. The work of VG is part of the DeltaITP consortium,
a program of the Netherlands Organization for Scientific\r\nResearch (NWO) funded
by the Dutch Ministry of Education, Culture and Science (OCW). VG is also partially
supported by RSF 19-71-10092. The work of AT was supported by the ERC Starting Grant
101042293 (HEPIQ). RS acknowledges support from Slovenian Research Agency (ARRS)
- research programme P1-0402. "
article_number: '184312'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Pavel
full_name: Orlov, Pavel
last_name: Orlov
- first_name: Anastasiia
full_name: Tiutiakina, Anastasiia
last_name: Tiutiakina
- first_name: Rustem
full_name: Sharipov, Rustem
last_name: Sharipov
- first_name: Elena
full_name: Petrova, Elena
id: 0ac84990-897b-11ed-a09c-f5abb56a4ede
last_name: Petrova
- first_name: Vladimir
full_name: Gritsev, Vladimir
last_name: Gritsev
- first_name: Denis V.
full_name: Kurlov, Denis V.
last_name: Kurlov
citation:
ama: Orlov P, Tiutiakina A, Sharipov R, Petrova E, Gritsev V, Kurlov DV. Adiabatic
eigenstate deformations and weak integrability breaking of Heisenberg chain. Physical
Review B. 2023;107(18). doi:10.1103/PhysRevB.107.184312
apa: Orlov, P., Tiutiakina, A., Sharipov, R., Petrova, E., Gritsev, V., & Kurlov,
D. V. (2023). Adiabatic eigenstate deformations and weak integrability breaking
of Heisenberg chain. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.107.184312
chicago: Orlov, Pavel, Anastasiia Tiutiakina, Rustem Sharipov, Elena Petrova, Vladimir
Gritsev, and Denis V. Kurlov. “Adiabatic Eigenstate Deformations and Weak Integrability
Breaking of Heisenberg Chain.” Physical Review B. American Physical Society,
2023. https://doi.org/10.1103/PhysRevB.107.184312.
ieee: P. Orlov, A. Tiutiakina, R. Sharipov, E. Petrova, V. Gritsev, and D. V. Kurlov,
“Adiabatic eigenstate deformations and weak integrability breaking of Heisenberg
chain,” Physical Review B, vol. 107, no. 18. American Physical Society,
2023.
ista: Orlov P, Tiutiakina A, Sharipov R, Petrova E, Gritsev V, Kurlov DV. 2023.
Adiabatic eigenstate deformations and weak integrability breaking of Heisenberg
chain. Physical Review B. 107(18), 184312.
mla: Orlov, Pavel, et al. “Adiabatic Eigenstate Deformations and Weak Integrability
Breaking of Heisenberg Chain.” Physical Review B, vol. 107, no. 18, 184312,
American Physical Society, 2023, doi:10.1103/PhysRevB.107.184312.
short: P. Orlov, A. Tiutiakina, R. Sharipov, E. Petrova, V. Gritsev, D.V. Kurlov,
Physical Review B 107 (2023).
date_created: 2023-06-18T22:00:46Z
date_published: 2023-05-01T00:00:00Z
date_updated: 2023-08-02T06:16:02Z
day: '01'
department:
- _id: GradSch
doi: 10.1103/PhysRevB.107.184312
external_id:
arxiv:
- '2303.00729'
isi:
- '001003686900004'
intvolume: ' 107'
isi: 1
issue: '18'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2303.00729
month: '05'
oa: 1
oa_version: Preprint
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: Adiabatic eigenstate deformations and weak integrability breaking of Heisenberg
chain
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 107
year: '2023'
...
---
_id: '13257'
abstract:
- lang: eng
text: The magnetotropic susceptibility is the thermodynamic coefficient associated
with the rotational anisotropy of the free energy in an external magnetic field
and is closely related to the magnetic susceptibility. It emerges naturally in
frequency-shift measurements of oscillating mechanical cantilevers, which are
becoming an increasingly important tool in the quantitative study of the thermodynamics
of modern condensed-matter systems. Here we discuss the basic properties of the
magnetotropic susceptibility as they relate to the experimental aspects of frequency-shift
measurements, as well as to the interpretation of those experiments in terms of
the intrinsic properties of the system under study.
acknowledgement: "We thank Aharon Kapitulnik, Philip Moll, and Andreas Rydh for illuminating
discussions. The work at the Los Alamos National Laboratory is supported by National
Science Foundation Cooperative Agreements No. DMR-1157490 and No. DMR-1644779, the
state of Florida, and the U.S. Department of Energy. A.S. acknowledges support from
the DOE/BES Science of 100T grant. B.J.R. acknowledges funding from the National
Science Foundation under Grant No.\r\nDMR-1752784."
article_number: '035111'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: A.
full_name: Shekhter, A.
last_name: Shekhter
- first_name: R. D.
full_name: Mcdonald, R. D.
last_name: Mcdonald
- first_name: B. J.
full_name: Ramshaw, B. J.
last_name: Ramshaw
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
citation:
ama: Shekhter A, Mcdonald RD, Ramshaw BJ, Modic KA. Magnetotropic susceptibility.
Physical Review B. 2023;108(3). doi:10.1103/PhysRevB.108.035111
apa: Shekhter, A., Mcdonald, R. D., Ramshaw, B. J., & Modic, K. A. (2023). Magnetotropic
susceptibility. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.108.035111
chicago: Shekhter, A., R. D. Mcdonald, B. J. Ramshaw, and Kimberly A Modic. “Magnetotropic
Susceptibility.” Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/PhysRevB.108.035111.
ieee: A. Shekhter, R. D. Mcdonald, B. J. Ramshaw, and K. A. Modic, “Magnetotropic
susceptibility,” Physical Review B, vol. 108, no. 3. American Physical
Society, 2023.
ista: Shekhter A, Mcdonald RD, Ramshaw BJ, Modic KA. 2023. Magnetotropic susceptibility.
Physical Review B. 108(3), 035111.
mla: Shekhter, A., et al. “Magnetotropic Susceptibility.” Physical Review B,
vol. 108, no. 3, 035111, American Physical Society, 2023, doi:10.1103/PhysRevB.108.035111.
short: A. Shekhter, R.D. Mcdonald, B.J. Ramshaw, K.A. Modic, Physical Review B 108
(2023).
date_created: 2023-07-23T22:01:10Z
date_published: 2023-07-15T00:00:00Z
date_updated: 2023-12-13T11:58:57Z
day: '15'
department:
- _id: KiMo
doi: 10.1103/PhysRevB.108.035111
external_id:
arxiv:
- '2208.10038'
isi:
- '001062708600002'
intvolume: ' 108'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2208.10038
month: '07'
oa: 1
oa_version: Preprint
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: Magnetotropic susceptibility
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 108
year: '2023'
...
---
_id: '13963'
abstract:
- lang: eng
text: The many-body localization (MBL) proximity effect is an intriguing phenomenon
where a thermal bath localizes due to the interaction with a disordered system.
The interplay of thermal and nonergodic behavior in these systems gives rise to
a rich phase diagram, whose exploration is an active field of research. In this
paper, we study a bosonic Hubbard model featuring two particle species representing
the bath and the disordered system. Using state-of-the-art numerical techniques,
we investigate the dynamics of the model in different regimes, based on which
we obtain a tentative phase diagram as a function of coupling strength and bath
size. When the bath is composed of a single particle, we observe clear signatures
of a transition from an MBL proximity effect to a delocalized phase. Increasing
the bath size, however, its thermalizing effect becomes stronger and eventually
the whole system delocalizes in the range of moderate interaction strengths studied.
In this regime, we characterize particle transport, revealing diffusive behavior
of the originally localized bosons.
acknowledgement: "We thank A. A. Michailidis and A. Mirlin for insightful discussions.
P.B., M.L., 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). D.A. was\r\nsupported by the European Research Council (ERC) under
the European Union’s Horizon 2020 research and innovation program (Grant Agreement
No. 864597) and by the Swiss National Science Foundation. P.B., M.L., and M.S. acknowledge
PRACE for awarding us access to Joliot-Curie at GENCI@CEA, France, where the TEBD
simulations were performed. The TEBD simulations were performed using the ITensor
library [60]."
article_number: '054201'
article_processing_charge: Yes (in subscription journal)
article_type: original
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
- 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: Brighi P, Ljubotina M, Abanin DA, Serbyn M. Many-body localization proximity
effect in a two-species bosonic Hubbard model. Physical Review B. 2023;108(5).
doi:10.1103/physrevb.108.054201
apa: Brighi, P., Ljubotina, M., Abanin, D. A., & Serbyn, M. (2023). Many-body
localization proximity effect in a two-species bosonic Hubbard model. Physical
Review B. American Physical Society. https://doi.org/10.1103/physrevb.108.054201
chicago: Brighi, Pietro, Marko Ljubotina, Dmitry A. Abanin, and Maksym Serbyn. “Many-Body
Localization Proximity Effect in a Two-Species Bosonic Hubbard Model.” Physical
Review B. American Physical Society, 2023. https://doi.org/10.1103/physrevb.108.054201.
ieee: P. Brighi, M. Ljubotina, D. A. Abanin, and M. Serbyn, “Many-body localization
proximity effect in a two-species bosonic Hubbard model,” Physical Review B,
vol. 108, no. 5. American Physical Society, 2023.
ista: Brighi P, Ljubotina M, Abanin DA, Serbyn M. 2023. Many-body localization proximity
effect in a two-species bosonic Hubbard model. Physical Review B. 108(5), 054201.
mla: Brighi, Pietro, et al. “Many-Body Localization Proximity Effect in a Two-Species
Bosonic Hubbard Model.” Physical Review B, vol. 108, no. 5, 054201, American
Physical Society, 2023, doi:10.1103/physrevb.108.054201.
short: P. Brighi, M. Ljubotina, D.A. Abanin, M. Serbyn, Physical Review B 108 (2023).
date_created: 2023-08-05T18:25:22Z
date_published: 2023-08-01T00:00:00Z
date_updated: 2023-08-07T09:51:39Z
day: '01'
ddc:
- '530'
department:
- _id: MaSe
doi: 10.1103/physrevb.108.054201
ec_funded: 1
external_id:
arxiv:
- '2303.16876'
file:
- access_level: open_access
checksum: f763000339b5fd543c14377109920690
content_type: application/pdf
creator: dernst
date_created: 2023-08-07T09:48:08Z
date_updated: 2023-08-07T09:48:08Z
file_id: '13981'
file_name: 2023_PhysRevB_Brighi.pdf
file_size: 3051398
relation: main_file
success: 1
file_date_updated: 2023-08-07T09:48:08Z
has_accepted_license: '1'
intvolume: ' 108'
issue: '5'
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 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: Many-body localization proximity effect in a two-species bosonic Hubbard model
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: 108
year: '2023'
...
---
_id: '13966'
abstract:
- lang: eng
text: We present a low-scaling diagrammatic Monte Carlo approach to molecular correlation
energies. Using combinatorial graph theory to encode many-body Hugenholtz diagrams,
we sample the Møller-Plesset (MPn) perturbation series, obtaining accurate correlation
energies up to n=5, with quadratic scaling in the number of basis functions. Our
technique reduces the computational complexity of the molecular many-fermion correlation
problem, opening up the possibility of low-scaling, accurate stochastic computations
for a wide class of many-body systems described by Hugenholtz diagrams.
acknowledgement: We acknowledge stimulating discussions with Sergey Varganov, Artur
Izmaylov, Jacek Kłos, Piotr Żuchowski, Dominika Zgid, Nikolay Prokof'ev, Boris Svistunov,
Robert Parrish, and Andreas Heßelmann. G.B. and Q.P.H. acknowledge support from
the Austrian Science Fund (FWF) under Projects No. M2641-N27 and No. M2751. M.L.
acknowledges support by the FWF under Project No. P29902-N27, and by the European
Research Council (ERC) Starting Grant No. 801770 (ANGULON). T.V.T. was supported
by the NSF CAREER award No. PHY-2045681. This work is supported by the German Research
Foundation (DFG) under Germany's Excellence Strategy EXC2181/1-390900948 (the Heidelberg
STRUCTURES Excellence Cluster). The authors acknowledge support by the state of
Baden-Württemberg through bwHPC.
article_number: '045115'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Giacomo
full_name: Bighin, Giacomo
id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87
last_name: Bighin
orcid: 0000-0001-8823-9777
- first_name: Quoc P
full_name: Ho, Quoc P
id: 3DD82E3C-F248-11E8-B48F-1D18A9856A87
last_name: Ho
orcid: 0000-0001-6889-1418
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: T. V.
full_name: Tscherbul, T. V.
last_name: Tscherbul
citation:
ama: 'Bighin G, Ho QP, Lemeshko M, Tscherbul TV. Diagrammatic Monte Carlo for electronic
correlation in molecules: High-order many-body perturbation theory with low scaling.
Physical Review B. 2023;108(4). doi:10.1103/PhysRevB.108.045115'
apa: 'Bighin, G., Ho, Q. P., Lemeshko, M., & Tscherbul, T. V. (2023). Diagrammatic
Monte Carlo for electronic correlation in molecules: High-order many-body perturbation
theory with low scaling. Physical Review B. American Physical Society.
https://doi.org/10.1103/PhysRevB.108.045115'
chicago: 'Bighin, Giacomo, Quoc P Ho, Mikhail Lemeshko, and T. V. Tscherbul. “Diagrammatic
Monte Carlo for Electronic Correlation in Molecules: High-Order Many-Body Perturbation
Theory with Low Scaling.” Physical Review B. American Physical Society,
2023. https://doi.org/10.1103/PhysRevB.108.045115.'
ieee: 'G. Bighin, Q. P. Ho, M. Lemeshko, and T. V. Tscherbul, “Diagrammatic Monte
Carlo for electronic correlation in molecules: High-order many-body perturbation
theory with low scaling,” Physical Review B, vol. 108, no. 4. American
Physical Society, 2023.'
ista: 'Bighin G, Ho QP, Lemeshko M, Tscherbul TV. 2023. Diagrammatic Monte Carlo
for electronic correlation in molecules: High-order many-body perturbation theory
with low scaling. Physical Review B. 108(4), 045115.'
mla: 'Bighin, Giacomo, et al. “Diagrammatic Monte Carlo for Electronic Correlation
in Molecules: High-Order Many-Body Perturbation Theory with Low Scaling.” Physical
Review B, vol. 108, no. 4, 045115, American Physical Society, 2023, doi:10.1103/PhysRevB.108.045115.'
short: G. Bighin, Q.P. Ho, M. Lemeshko, T.V. Tscherbul, Physical Review B 108 (2023).
date_created: 2023-08-06T22:01:10Z
date_published: 2023-07-15T00:00:00Z
date_updated: 2024-08-07T07:16:52Z
day: '15'
department:
- _id: MiLe
- _id: TaHa
doi: 10.1103/PhysRevB.108.045115
ec_funded: 1
external_id:
arxiv:
- '2203.12666'
intvolume: ' 108'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2203.12666
month: '07'
oa: 1
oa_version: Preprint
project:
- _id: 26986C82-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: M02641
name: A path-integral approach to composite impurities
- _id: 26B96266-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: M02751
name: Algebro-Geometric Applications of Factorization Homology
- _id: 26031614-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P29902
name: Quantum rotations in the presence of a many-body environment
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
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: 'Diagrammatic Monte Carlo for electronic correlation in molecules: High-order
many-body perturbation theory with low scaling'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 108
year: '2023'
...
---
_id: '12724'
abstract:
- lang: eng
text: 'We use general symmetry-based arguments to construct an effective model suitable
for studying optical properties of lead halide perovskites. To build the model,
we identify an atomic-level interaction between electromagnetic fields and the
spin degree of freedom that should be added to a minimally coupled k⋅p Hamiltonian.
As a first application, we study two basic optical characteristics of the material:
the Verdet constant and the refractive index. Beyond these linear characteristics
of the material, the model is suitable for calculating nonlinear effects such
as the third-order optical susceptibility. Analysis of this quantity shows that
the geometrical properties of the spin-electric term imply isotropic optical response
of the system, and that optical anisotropy of lead halide perovskites is a manifestation
of hopping of charge carriers. To illustrate this, we discuss third-harmonic generation.'
article_number: '125201'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Abhishek
full_name: Shiva Kumar, Abhishek
id: 5e9a6931-eb97-11eb-a6c2-e96f7058d77a
last_name: Shiva Kumar
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Younes
full_name: Ashourishokri, Younes
id: e32c111f-f6e0-11ea-865d-eb955baea334
last_name: Ashourishokri
- first_name: Ayan
full_name: Zhumekenov, Ayan
last_name: Zhumekenov
- first_name: Osman M.
full_name: Bakr, Osman M.
last_name: Bakr
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: Volosniev A, Shiva Kumar A, Lorenc D, et al. Effective model for studying optical
properties of lead halide perovskites. Physical Review B. 2023;107(12).
doi:10.1103/physrevb.107.125201
apa: Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov,
A., Bakr, O. M., … Alpichshev, Z. (2023). Effective model for studying optical
properties of lead halide perovskites. Physical Review B. American Physical
Society. https://doi.org/10.1103/physrevb.107.125201
chicago: Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri,
Ayan Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Effective
Model for Studying Optical Properties of Lead Halide Perovskites.” Physical
Review B. American Physical Society, 2023. https://doi.org/10.1103/physrevb.107.125201.
ieee: A. Volosniev et al., “Effective model for studying optical properties
of lead halide perovskites,” Physical Review B, vol. 107, no. 12. American
Physical Society, 2023.
ista: Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov A, Bakr
OM, Lemeshko M, Alpichshev Z. 2023. Effective model for studying optical properties
of lead halide perovskites. Physical Review B. 107(12), 125201.
mla: Volosniev, Artem, et al. “Effective Model for Studying Optical Properties of
Lead Halide Perovskites.” Physical Review B, vol. 107, no. 12, 125201,
American Physical Society, 2023, doi:10.1103/physrevb.107.125201.
short: A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A. Zhumekenov,
O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review B 107 (2023).
date_created: 2023-03-14T13:13:05Z
date_published: 2023-03-15T00:00:00Z
date_updated: 2023-08-01T13:39:47Z
day: '15'
department:
- _id: GradSch
- _id: ZhAl
- _id: MiLe
doi: 10.1103/physrevb.107.125201
external_id:
arxiv:
- '2204.04022'
isi:
- '000972602200006'
intvolume: ' 107'
isi: 1
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2204.04022
month: '03'
oa: 1
oa_version: Preprint
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: Effective model for studying optical properties of lead halide perovskites
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 107
year: '2023'
...
---
_id: '12790'
abstract:
- lang: eng
text: Motivated by the recent discoveries of superconductivity in bilayer and trilayer
graphene, we theoretically investigate superconductivity and other interaction-driven
phases in multilayer graphene stacks. To this end, we study the density of states
of multilayer graphene with up to four layers at the single-particle band structure
level in the presence of a transverse electric field. Among the considered structures,
tetralayer graphene with rhombohedral (ABCA) stacking reaches the highest density
of states. We study the phases that can arise in ABCA graphene by tuning the carrier
density and transverse electric field. For a broad region of the tuning parameters,
the presence of strong Coulomb repulsion leads to a spontaneous spin and valley
symmetry breaking via Stoner transitions. Using a model that incorporates the
spontaneous spin and valley polarization, we explore the Kohn-Luttinger mechanism
for superconductivity driven by repulsive Coulomb interactions. We find that the
strongest superconducting instability is in the p-wave channel, and occurs in
proximity to the onset of Stoner transitions. Interestingly, we find a range of
densities and transverse electric fields where superconductivity develops out
of a strongly corrugated, singly connected Fermi surface in each valley, leading
to a topologically nontrivial chiral p+ip superconducting state with an even number
of copropagating chiral Majorana edge modes. Our work establishes ABCA-stacked
tetralayer graphene as a promising platform for observing strongly correlated
physics and topological superconductivity.
acknowledgement: 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: '104502'
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: 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
citation:
ama: Ghazaryan A, Holder T, Berg E, Serbyn M. Multilayer graphenes as a platform
for interaction-driven physics and topological superconductivity. Physical
Review B. 2023;107(10). doi:10.1103/PhysRevB.107.104502
apa: Ghazaryan, A., Holder, T., Berg, E., & Serbyn, M. (2023). Multilayer graphenes
as a platform for interaction-driven physics and topological superconductivity.
Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.107.104502
chicago: Ghazaryan, Areg, Tobias Holder, Erez Berg, and Maksym Serbyn. “Multilayer
Graphenes as a Platform for Interaction-Driven Physics and Topological Superconductivity.”
Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/PhysRevB.107.104502.
ieee: A. Ghazaryan, T. Holder, E. Berg, and M. Serbyn, “Multilayer graphenes as
a platform for interaction-driven physics and topological superconductivity,”
Physical Review B, vol. 107, no. 10. American Physical Society, 2023.
ista: Ghazaryan A, Holder T, Berg E, Serbyn M. 2023. Multilayer graphenes as a platform
for interaction-driven physics and topological superconductivity. Physical Review
B. 107(10), 104502.
mla: Ghazaryan, Areg, et al. “Multilayer Graphenes as a Platform for Interaction-Driven
Physics and Topological Superconductivity.” Physical Review B, vol. 107,
no. 10, 104502, American Physical Society, 2023, doi:10.1103/PhysRevB.107.104502.
short: A. Ghazaryan, T. Holder, E. Berg, M. Serbyn, Physical Review B 107 (2023).
date_created: 2023-04-02T22:01:10Z
date_published: 2023-03-01T00:00:00Z
date_updated: 2023-08-01T13:59:29Z
day: '01'
department:
- _id: MaSe
- _id: MiLe
doi: 10.1103/PhysRevB.107.104502
external_id:
arxiv:
- '2211.02492'
isi:
- '000945526400003'
intvolume: ' 107'
isi: 1
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2211.02492
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- description: News on the ISTA website
relation: press_release
url: https://ista.ac.at/en/news/reaching-superconductivity-layer-by-layer/
scopus_import: '1'
status: public
title: Multilayer graphenes as a platform for interaction-driven physics and topological
superconductivity
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 107
year: '2023'
...
---
_id: '13039'
abstract:
- lang: eng
text: We calculate reflectivities of dynamically compressed water, water-ethanol
mixtures, and ammonia at infrared and optical wavelengths with density functional
theory and molecular dynamics simulations. The influence of the exchange-correlation
functional on the results is examined in detail. Our findings indicate that the
consistent use of the HSE hybrid functional reproduces experimental results much
better than the commonly used PBE functional. The HSE functional offers not only
a more accurate description of the electronic band gap but also shifts the onset
of molecular dissociation in the molecular dynamics simulations to significantly
higher pressures. We also highlight the importance of using accurate reference
standards in reflectivity experiments and reanalyze infrared and optical reflectivity
data from recent experiments. Thus, our combined theoretical and experimental
work explains and resolves lingering discrepancies between calculations and measurements
for the investigated molecular substances under shock compression.
acknowledgement: 'We thank R. Redmer for helpful discussions. M.F. acknowledges support
by the Deutsche Forschungsgemeinschaft (DFG) within the FOR 2440. M.B. gratefully
acknowledges support by the European Horizon 2020 programme within the Marie Skłodowska-Curie
actions (xICE Grant No. 894725) and the NOMIS foundation. A.R. and J.-A.H. acknowledge
support form the French National Research Agency (ANR) through the projects POMPEI
(Grant No. ANR-16-CE31-0008) and SUPER-ICES (Grant No. ANR-15-CE30-008-01). The
ab initio calculations were performed at the NorthGerman Supercomputing Alliance
(HLRN) facilities. '
article_number: '134109'
article_processing_charge: No
article_type: original
author:
- first_name: Martin
full_name: French, Martin
last_name: French
- first_name: Mandy
full_name: Bethkenhagen, Mandy
id: 201939f4-803f-11ed-ab7e-d8da4bd1517f
last_name: Bethkenhagen
orcid: 0000-0002-1838-2129
- first_name: Alessandra
full_name: Ravasio, Alessandra
last_name: Ravasio
- first_name: Jean Alexis
full_name: Hernandez, Jean Alexis
last_name: Hernandez
citation:
ama: French M, Bethkenhagen M, Ravasio A, Hernandez JA. Ab initio calculation of
the reflectivity of molecular fluids under shock compression. Physical Review
B. 2023;107(13). doi:10.1103/PhysRevB.107.134109
apa: French, M., Bethkenhagen, M., Ravasio, A., & Hernandez, J. A. (2023). Ab
initio calculation of the reflectivity of molecular fluids under shock compression.
Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.107.134109
chicago: French, Martin, Mandy Bethkenhagen, Alessandra Ravasio, and Jean Alexis
Hernandez. “Ab Initio Calculation of the Reflectivity of Molecular Fluids under
Shock Compression.” Physical Review B. American Physical Society, 2023.
https://doi.org/10.1103/PhysRevB.107.134109.
ieee: M. French, M. Bethkenhagen, A. Ravasio, and J. A. Hernandez, “Ab initio calculation
of the reflectivity of molecular fluids under shock compression,” Physical
Review B, vol. 107, no. 13. American Physical Society, 2023.
ista: French M, Bethkenhagen M, Ravasio A, Hernandez JA. 2023. Ab initio calculation
of the reflectivity of molecular fluids under shock compression. Physical Review
B. 107(13), 134109.
mla: French, Martin, et al. “Ab Initio Calculation of the Reflectivity of Molecular
Fluids under Shock Compression.” Physical Review B, vol. 107, no. 13, 134109,
American Physical Society, 2023, doi:10.1103/PhysRevB.107.134109.
short: M. French, M. Bethkenhagen, A. Ravasio, J.A. Hernandez, Physical Review B
107 (2023).
date_created: 2023-05-21T22:01:04Z
date_published: 2023-04-01T00:00:00Z
date_updated: 2023-08-01T14:45:25Z
day: '01'
department:
- _id: BiCh
doi: 10.1103/PhysRevB.107.134109
external_id:
isi:
- '000974672600001'
intvolume: ' 107'
isi: 1
issue: '13'
language:
- iso: eng
month: '04'
oa_version: None
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: Ab initio calculation of the reflectivity of molecular fluids under shock compression
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 107
year: '2023'
...
---
_id: '11469'
abstract:
- lang: eng
text: Thermalizing and localized many-body quantum systems present two distinct
dynamical phases of matter. Recently the fate of a localized system coupled to
a thermalizing system viewed as a quantum bath received significant theoretical
and experimental attention. In this work, we study a mobile impurity, representing
a small quantum bath, that interacts locally with an Anderson insulator with a
finite density of localized particles. Using static Hartree approximation to obtain
an effective disorder strength, we formulate an analytic criterion for the perturbative
stability of the localization. Next, we use an approximate dynamical Hartree method
and the quasi-exact time-evolved block decimation (TEBD) algorithm to study the
dynamics of the system. We find that the dynamical Hartree approach which completely
ignores entanglement between the impurity and localized particles predicts the
delocalization of the system. In contrast, the full numerical simulation of the
unitary dynamics with TEBD suggests the stability of localization on numerically
accessible timescales. Finally, using an extension of the density matrix renormalization
group algorithm to excited states (DMRG-X), we approximate the highly excited
eigenstates of the system. We find that the impurity remains localized in the
eigenstates and entanglement is enhanced in a finite region around the position
of the impurity, confirming the dynamical predictions. Dynamics and the DMRG-X
results provide compelling evidence for the stability of localization.
acknowledged_ssus:
- _id: ScienComp
acknowledgement: We thank M. Ljubotina for insightful discussions. P. B., A. 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).
D. A. was supported by the Swiss National Science Foundation and by the European
Research Council (ERC) under the European Union’s Horizon 2020 research and innovation
program (Grant Agreement No. 864597). The development of parallel TEBD code was
supported by S. Elefante from the Scientific Computing (SciComp) that is part of
Scientific Service Units (SSU) of IST Austria. Some of the computations were performed
on the Baobab cluster of the University of Geneva.
article_number: '224208'
article_processing_charge: No
article_type: original
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: Alexios
full_name: Michailidis, Alexios
id: 36EBAD38-F248-11E8-B48F-1D18A9856A87
last_name: Michailidis
orcid: 0000-0002-8443-1064
- first_name: Kristina
full_name: Kirova, Kristina
id: 4aeda2ae-f847-11ec-98e0-c4a66fe174d4
last_name: Kirova
- 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: Brighi P, Michailidis A, Kirova K, Abanin DA, Serbyn M. Localization of a mobile
impurity interacting with an Anderson insulator. Physical Review B. 2022;105(22).
doi:10.1103/physrevb.105.224208
apa: Brighi, P., Michailidis, A., Kirova, K., Abanin, D. A., & Serbyn, M. (2022).
Localization of a mobile impurity interacting with an Anderson insulator. Physical
Review B. American Physical Society. https://doi.org/10.1103/physrevb.105.224208
chicago: Brighi, Pietro, Alexios Michailidis, Kristina Kirova, Dmitry A. Abanin,
and Maksym Serbyn. “Localization of a Mobile Impurity Interacting with an Anderson
Insulator.” Physical Review B. American Physical Society, 2022. https://doi.org/10.1103/physrevb.105.224208.
ieee: P. Brighi, A. Michailidis, K. Kirova, D. A. Abanin, and M. Serbyn, “Localization
of a mobile impurity interacting with an Anderson insulator,” Physical Review
B, vol. 105, no. 22. American Physical Society, 2022.
ista: Brighi P, Michailidis A, Kirova K, Abanin DA, Serbyn M. 2022. Localization
of a mobile impurity interacting with an Anderson insulator. Physical Review B.
105(22), 224208.
mla: Brighi, Pietro, et al. “Localization of a Mobile Impurity Interacting with
an Anderson Insulator.” Physical Review B, vol. 105, no. 22, 224208, American
Physical Society, 2022, doi:10.1103/physrevb.105.224208.
short: P. Brighi, A. Michailidis, K. Kirova, D.A. Abanin, M. Serbyn, Physical Review
B 105 (2022).
date_created: 2022-06-29T20:19:51Z
date_published: 2022-06-27T00:00:00Z
date_updated: 2023-09-05T12:12:52Z
day: '27'
department:
- _id: MaSe
doi: 10.1103/physrevb.105.224208
ec_funded: 1
external_id:
arxiv:
- '2111.08603'
isi:
- '000823050000001'
intvolume: ' 105'
isi: 1
issue: '22'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2111.08603 Focus to learn more'
month: '06'
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'
related_material:
record:
- id: '12732'
relation: dissertation_contains
status: public
status: public
title: Localization of a mobile impurity interacting with an Anderson insulator
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 105
year: '2022'
...
---
_id: '11470'
abstract:
- lang: eng
text: Many-body localization (MBL) is an example of a dynamical phase of matter
that avoids thermalization. While the MBL phase is robust to weak local perturbations,
the fate of an MBL system coupled to a thermalizing quantum system that represents
a “heat bath” is an open question that is actively investigated theoretically
and experimentally. In this work, we consider the stability of an Anderson insulator
with a finite density of particles interacting with a single mobile impurity—a
small quantum bath. We give perturbative arguments that support the stability
of localization in the strong interaction regime. Large-scale tensor network simulations
of dynamics are employed to corroborate the presence of the localized phase and
give quantitative predictions in the thermodynamic limit. We develop a phenomenological
description of the dynamics in the strong interaction regime, and we demonstrate
that the impurity effectively turns the Anderson insulator into an MBL phase,
giving rise to nontrivial entanglement dynamics well captured by our phenomenology.
acknowledged_ssus:
- _id: ScienComp
acknowledgement: We acknowledge useful discussions with M. Ljubotina. P. B., A. M.,
and M. S. were supported by the European Research Council (ERC) under the European
Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899).
D.A. was supported by the Swiss National Science Foundation and by the European
Research Council (ERC) under the European Union’s Horizon 2020 research and innovation
program (Grant Agreement No. 864597). The development of parallel TEBD code was
was supported by S. Elefante from the Scientific Computing (SciComp) that is part
of Scientific Service Units (SSU) of IST Austria. Some of the computations were
performed on the Baobab cluster of the University of Geneva.
article_number: L220203
article_processing_charge: No
article_type: original
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: Alexios A.
full_name: Michailidis, Alexios A.
last_name: Michailidis
- 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: Brighi P, Michailidis AA, Abanin DA, Serbyn M. Propagation of many-body localization
in an Anderson insulator. Physical Review B. 2022;105(22). doi:10.1103/physrevb.105.l220203
apa: Brighi, P., Michailidis, A. A., Abanin, D. A., & Serbyn, M. (2022). Propagation
of many-body localization in an Anderson insulator. Physical Review B.
American Physical Society. https://doi.org/10.1103/physrevb.105.l220203
chicago: Brighi, Pietro, Alexios A. Michailidis, Dmitry A. Abanin, and Maksym Serbyn.
“Propagation of Many-Body Localization in an Anderson Insulator.” Physical
Review B. American Physical Society, 2022. https://doi.org/10.1103/physrevb.105.l220203.
ieee: P. Brighi, A. A. Michailidis, D. A. Abanin, and M. Serbyn, “Propagation of
many-body localization in an Anderson insulator,” Physical Review B, vol.
105, no. 22. American Physical Society, 2022.
ista: Brighi P, Michailidis AA, Abanin DA, Serbyn M. 2022. Propagation of many-body
localization in an Anderson insulator. Physical Review B. 105(22), L220203.
mla: Brighi, Pietro, et al. “Propagation of Many-Body Localization in an Anderson
Insulator.” Physical Review B, vol. 105, no. 22, L220203, American Physical
Society, 2022, doi:10.1103/physrevb.105.l220203.
short: P. Brighi, A.A. Michailidis, D.A. Abanin, M. Serbyn, Physical Review B 105
(2022).
date_created: 2022-06-29T20:20:47Z
date_published: 2022-06-27T00:00:00Z
date_updated: 2023-08-03T07:23:52Z
day: '27'
department:
- _id: MaSe
doi: 10.1103/physrevb.105.l220203
ec_funded: 1
external_id:
arxiv:
- '2109.07332'
isi:
- '000823050000012'
intvolume: ' 105'
isi: 1
issue: '22'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2109.07332'
month: '06'
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'
related_material:
record:
- id: '12732'
relation: dissertation_contains
status: public
status: public
title: Propagation of many-body localization in an Anderson insulator
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 105
year: '2022'
...
---
_id: '11737'
abstract:
- lang: eng
text: Spin-orbit coupling in thin HgTe quantum wells results in a relativistic-like
electron band structure, making it a versatile solid state platform to observe
and control nontrivial electrodynamic phenomena. Here we report an observation
of universal terahertz (THz) transparency determined by fine-structure constant
α≈1/137 in 6.5-nm-thick HgTe layer, close to the critical thickness separating
phases with topologically different electronic band structure. Using THz spectroscopy
in a magnetic field we obtain direct evidence of asymmetric spin splitting of
the Dirac cone. This particle-hole asymmetry facilitates optical control of edge
spin currents in the quantum wells.
acknowledgement: This work was supported by the Austrian Science Funds (W 1243, I
3456-N27, I 5539-N).
article_number: '045302'
article_processing_charge: No
article_type: original
author:
- first_name: Uladzislau
full_name: Dziom, Uladzislau
id: 6A9A37C2-8C5C-11E9-AE53-F2FDE5697425
last_name: Dziom
orcid: 0000-0002-1648-0999
- first_name: A.
full_name: Shuvaev, A.
last_name: Shuvaev
- first_name: J.
full_name: Gospodarič, J.
last_name: Gospodarič
- first_name: E. G.
full_name: Novik, E. G.
last_name: Novik
- first_name: A. A.
full_name: Dobretsova, A. A.
last_name: Dobretsova
- first_name: N. N.
full_name: Mikhailov, N. N.
last_name: Mikhailov
- first_name: Z. D.
full_name: Kvon, Z. D.
last_name: Kvon
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: A.
full_name: Pimenov, A.
last_name: Pimenov
citation:
ama: Dziom U, Shuvaev A, Gospodarič J, et al. Universal transparency and asymmetric
spin splitting near the Dirac point in HgTe quantum wells. Physical Review
B. 2022;106(4). doi:10.1103/PhysRevB.106.045302
apa: Dziom, U., Shuvaev, A., Gospodarič, J., Novik, E. G., Dobretsova, A. A., Mikhailov,
N. N., … Pimenov, A. (2022). Universal transparency and asymmetric spin splitting
near the Dirac point in HgTe quantum wells. Physical Review B. American
Physical Society. https://doi.org/10.1103/PhysRevB.106.045302
chicago: Dziom, Uladzislau, A. Shuvaev, J. Gospodarič, E. G. Novik, A. A. Dobretsova,
N. N. Mikhailov, Z. D. Kvon, Zhanybek Alpichshev, and A. Pimenov. “Universal Transparency
and Asymmetric Spin Splitting near the Dirac Point in HgTe Quantum Wells.” Physical
Review B. American Physical Society, 2022. https://doi.org/10.1103/PhysRevB.106.045302.
ieee: U. Dziom et al., “Universal transparency and asymmetric spin splitting
near the Dirac point in HgTe quantum wells,” Physical Review B, vol. 106,
no. 4. American Physical Society, 2022.
ista: Dziom U, Shuvaev A, Gospodarič J, Novik EG, Dobretsova AA, Mikhailov NN, Kvon
ZD, Alpichshev Z, Pimenov A. 2022. Universal transparency and asymmetric spin
splitting near the Dirac point in HgTe quantum wells. Physical Review B. 106(4),
045302.
mla: Dziom, Uladzislau, et al. “Universal Transparency and Asymmetric Spin Splitting
near the Dirac Point in HgTe Quantum Wells.” Physical Review B, vol. 106,
no. 4, 045302, American Physical Society, 2022, doi:10.1103/PhysRevB.106.045302.
short: U. Dziom, A. Shuvaev, J. Gospodarič, E.G. Novik, A.A. Dobretsova, N.N. Mikhailov,
Z.D. Kvon, Z. Alpichshev, A. Pimenov, Physical Review B 106 (2022).
date_created: 2022-08-07T22:01:58Z
date_published: 2022-07-15T00:00:00Z
date_updated: 2023-08-03T12:38:57Z
day: '15'
ddc:
- '530'
department:
- _id: ZhAl
doi: 10.1103/PhysRevB.106.045302
external_id:
isi:
- '000834349200010'
file:
- access_level: open_access
checksum: 115aff9e0cde2f806cb26953d7262791
content_type: application/pdf
creator: dernst
date_created: 2022-08-08T06:58:22Z
date_updated: 2022-08-08T06:58:22Z
file_id: '11743'
file_name: 2022_PhysRevB_Dziom.pdf
file_size: 774455
relation: main_file
success: 1
file_date_updated: 2022-08-08T06:58:22Z
has_accepted_license: '1'
intvolume: ' 106'
isi: 1
issue: '4'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
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: Universal transparency and asymmetric spin splitting near the Dirac point in
HgTe quantum wells
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: 106
year: '2022'
...
---
_id: '12139'
abstract:
- lang: eng
text: We demonstrate the formation of robust zero-energy modes close to magnetic
impurities in the iron-based superconductor FeSe1-z Tez. We find that the Zeeman
field generated by the impurity favors a spin-triplet interorbital pairing as
opposed to the spin-singlet intraorbital pairing prevalent in the bulk. The preferred
spin-triplet pairing preserves time-reversal symmetry and is topological, as robust,
topologically protected zero modes emerge at the boundary between regions with
different pairing states. Moreover, the zero modes form Kramers doublets that
are insensitive to the direction of the spin polarization or to the separation
between impurities. We argue that our theoretical results are consistent with
recent experimental measurements on FeSe1-z Tez.
acknowledgement: "We thank Armin Rahmani, Andrey V. Chubukov, Jay D. Sau and Ruixing
Zhang for fruitful discussions. AK and PG are supported by NSF-DMR2037996. PG also
acknowledges support from NSF-DMR1824265. RMF was supported by the U. S. Department
of Energy, Office\r\nof Science, Basic Energy Sciences, Materials Sciences and Engineering
Division, under Award No. DE-SC0020045. Part of this work was performed at the Aspen
Center for Physics, which is supported by National Science Foundation grant PHY-1607611. "
article_number: L201107
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: Ammar
full_name: Kirmani, Ammar
last_name: Kirmani
- first_name: Rafael M.
full_name: Fernandes, Rafael M.
last_name: Fernandes
- first_name: Pouyan
full_name: Ghaemi, Pouyan
last_name: Ghaemi
citation:
ama: Ghazaryan A, Kirmani A, Fernandes RM, Ghaemi P. Anomalous Shiba states in topological
iron-based superconductors. Physical Review B. 2022;106(20). doi:10.1103/physrevb.106.l201107
apa: Ghazaryan, A., Kirmani, A., Fernandes, R. M., & Ghaemi, P. (2022). Anomalous
Shiba states in topological iron-based superconductors. Physical Review B.
American Physical Society. https://doi.org/10.1103/physrevb.106.l201107
chicago: Ghazaryan, Areg, Ammar Kirmani, Rafael M. Fernandes, and Pouyan Ghaemi.
“Anomalous Shiba States in Topological Iron-Based Superconductors.” Physical
Review B. American Physical Society, 2022. https://doi.org/10.1103/physrevb.106.l201107.
ieee: A. Ghazaryan, A. Kirmani, R. M. Fernandes, and P. Ghaemi, “Anomalous Shiba
states in topological iron-based superconductors,” Physical Review B, vol.
106, no. 20. American Physical Society, 2022.
ista: Ghazaryan A, Kirmani A, Fernandes RM, Ghaemi P. 2022. Anomalous Shiba states
in topological iron-based superconductors. Physical Review B. 106(20), L201107.
mla: Ghazaryan, Areg, et al. “Anomalous Shiba States in Topological Iron-Based Superconductors.”
Physical Review B, vol. 106, no. 20, L201107, American Physical Society,
2022, doi:10.1103/physrevb.106.l201107.
short: A. Ghazaryan, A. Kirmani, R.M. Fernandes, P. Ghaemi, Physical Review B 106
(2022).
date_created: 2023-01-12T12:04:43Z
date_published: 2022-11-15T00:00:00Z
date_updated: 2023-08-04T08:55:31Z
day: '15'
department:
- _id: MiLe
doi: 10.1103/physrevb.106.l201107
external_id:
arxiv:
- '2207.12425'
isi:
- '000893171800001'
intvolume: ' 106'
isi: 1
issue: '20'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2207.12425'
month: '11'
oa: 1
oa_version: Preprint
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: Anomalous Shiba states in topological iron-based superconductors
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 106
year: '2022'
...
---
_id: '12150'
abstract:
- lang: eng
text: Methods inspired from machine learning have recently attracted great interest
in the computational study of quantum many-particle systems. So far, however,
it has proven challenging to deal with microscopic models in which the total number
of particles is not conserved. To address this issue, we propose a variant of
neural network states, which we term neural coherent states. Taking the Fröhlich
impurity model as a case study, we show that neural coherent states can learn
the ground state of nonadditive systems very well. In particular, we recover exact
diagonalization in all regimes tested and observe substantial improvement over
the standard coherent state estimates in the most challenging intermediate-coupling
regime. Our approach is generic and does not assume specific details of the system,
suggesting wide applications.
acknowledgement: 'We acknowledge fruitful discussions with G. Bighin, G. Fabiani,
A. Ghazaryan, C. Lampert, and A. Volosniev at various stages of this work. W.R.
acknowledges support through a DOC Fellowship of the Austrian Academy of Sciences
and has received funding from the EU Horizon 2020 programme under the Marie Skłodowska-Curie
Grant Agreement No. 665385. M.L. and J.H.M. acknowledge support by the European
Research Council (ERC) Starting Grant No. 801770 (ANGULON) and Synergy Grant No.
856538 (3D-MAGiC), respectively. This work is part of the Shell-NWO/FOMinitiative
“Computational sciences for energy research” of Shell and Chemical Sciences, Earth
and Life Sciences, Physical Sciences, FOM and STW. '
article_number: '155127'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Wojciech
full_name: Rzadkowski, Wojciech
id: 48C55298-F248-11E8-B48F-1D18A9856A87
last_name: Rzadkowski
orcid: 0000-0002-1106-4419
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Johan H.
full_name: Mentink, Johan H.
last_name: Mentink
citation:
ama: Rzadkowski W, Lemeshko M, Mentink JH. Artificial neural network states for
nonadditive systems. Physical Review B. 2022;106(15). doi:10.1103/physrevb.106.155127
apa: Rzadkowski, W., Lemeshko, M., & Mentink, J. H. (2022). Artificial neural
network states for nonadditive systems. Physical Review B. American Physical
Society. https://doi.org/10.1103/physrevb.106.155127
chicago: Rzadkowski, Wojciech, Mikhail Lemeshko, and Johan H. Mentink. “Artificial
Neural Network States for Nonadditive Systems.” Physical Review B. American
Physical Society, 2022. https://doi.org/10.1103/physrevb.106.155127.
ieee: W. Rzadkowski, M. Lemeshko, and J. H. Mentink, “Artificial neural network
states for nonadditive systems,” Physical Review B, vol. 106, no. 15. American
Physical Society, 2022.
ista: Rzadkowski W, Lemeshko M, Mentink JH. 2022. Artificial neural network states
for nonadditive systems. Physical Review B. 106(15), 155127.
mla: Rzadkowski, Wojciech, et al. “Artificial Neural Network States for Nonadditive
Systems.” Physical Review B, vol. 106, no. 15, 155127, American Physical
Society, 2022, doi:10.1103/physrevb.106.155127.
short: W. Rzadkowski, M. Lemeshko, J.H. Mentink, Physical Review B 106 (2022).
date_created: 2023-01-12T12:07:49Z
date_published: 2022-10-15T00:00:00Z
date_updated: 2023-08-04T09:01:48Z
day: '15'
department:
- _id: MiLe
doi: 10.1103/physrevb.106.155127
ec_funded: 1
external_id:
arxiv:
- '2105.15193'
isi:
- '000875189100005'
intvolume: ' 106'
isi: 1
issue: '15'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2105.15193'
month: '10'
oa: 1
oa_version: Preprint
project:
- _id: 05A235A0-7A3F-11EA-A408-12923DDC885E
grant_number: '25681'
name: Analytic and machine learning approaches to composite quantum impurities
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
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: Artificial neural network states for nonadditive systems
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 106
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'
...