---
_id: '11856'
abstract:
- lang: eng
text: 'We study dynamic (1 + ϵ)-approximation algorithms for the all-pairs shortest
paths problem in unweighted undirected n-node m-edge graphs under edge deletions.
The fastest algorithm for this problem is a randomized algorithm with a total
update time of Ȏ(mn) and constant query time by Roditty and Zwick (FOCS 2004).
The fastest deterministic algorithm is from a 1981 paper by Even and Shiloach
(JACM 1981); it has a total update time of O(mn 2 ) and constant query time. We
improve these results as follows: (1) We present an algorithm with a total update
time of Ȏ(n 5/2 ) and constant query time that has an additive error of two in
addition to the 1 + ϵ multiplicative error. This beats the previous Ȏ(mn) time
when m = Ω(n 3/2 ). Note that the additive error is unavoidable since, even in
the static case, an O(n 3-δ )-time (a so-called truly sub cubic) combinatorial
algorithm with 1 + ϵ multiplicative error cannot have an additive error less than
2 - ϵ, unless we make a major breakthrough for Boolean matrix multiplication (Dor,
Halperin and Zwick FOCS 1996) and many other long-standing problems (Vassilevska
Williams and Williams FOCS 2010). The algorithm can also be turned into a (2 +
ϵ)-approximation algorithm (without an additive error) with the same time guarantees,
improving the recent (3 + ϵ)-approximation algorithm with Ȏ(n 5/2+O(1√(log n))
) running time of Bernstein and Roditty (SODA 2011) in terms of both approximation
and time guarantees. (2) We present a deterministic algorithm with a total update
time of Ȏ(mn) and a query time of O(log log n). The algorithm has a multiplicative
error of 1 + ϵ and gives the first improved deterministic algorithm since 1981.
It also answers an open question raised by Bernstein in his STOC 2013 paper. In
order to achieve our results, we introduce two new techniques: (1) A lazy Even-Shiloach
tree algorithm which maintains a bounded-distance shortest-paths tree on a certain
type of emulator called locally persevering emulator. (2) A derandomization technique
based on moving Even-Shiloach trees as a way to derandomize the standard random
set argument. These techniques might be of independent interest.'
article_processing_charge: No
arxiv: 1
author:
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
- first_name: Sebastian
full_name: Krinninger, Sebastian
last_name: Krinninger
- first_name: Danupon
full_name: Nanongkai, Danupon
last_name: Nanongkai
citation:
ama: 'Henzinger MH, Krinninger S, Nanongkai D. Dynamic approximate all-pairs shortest
paths: Breaking the O(mn) barrier and derandomization. In: 54th Annual Symposium
on Foundations of Computer Science. Institute of Electrical and Electronics
Engineers; 2013:538-547. doi:10.1109/focs.2013.64'
apa: 'Henzinger, M. H., Krinninger, S., & Nanongkai, D. (2013). Dynamic approximate
all-pairs shortest paths: Breaking the O(mn) barrier and derandomization. In 54th
Annual Symposium on Foundations of Computer Science (pp. 538–547). Berkeley,
CA, United States: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/focs.2013.64'
chicago: 'Henzinger, Monika H, Sebastian Krinninger, and Danupon Nanongkai. “Dynamic
Approximate All-Pairs Shortest Paths: Breaking the O(Mn) Barrier and Derandomization.”
In 54th Annual Symposium on Foundations of Computer Science, 538–47. Institute
of Electrical and Electronics Engineers, 2013. https://doi.org/10.1109/focs.2013.64.'
ieee: 'M. H. Henzinger, S. Krinninger, and D. Nanongkai, “Dynamic approximate all-pairs
shortest paths: Breaking the O(mn) barrier and derandomization,” in 54th Annual
Symposium on Foundations of Computer Science, Berkeley, CA, United States,
2013, pp. 538–547.'
ista: 'Henzinger MH, Krinninger S, Nanongkai D. 2013. Dynamic approximate all-pairs
shortest paths: Breaking the O(mn) barrier and derandomization. 54th Annual Symposium
on Foundations of Computer Science. FOCS: Symposium on Foundations of Computer
Science, 538–547.'
mla: 'Henzinger, Monika H., et al. “Dynamic Approximate All-Pairs Shortest Paths:
Breaking the O(Mn) Barrier and Derandomization.” 54th Annual Symposium on Foundations
of Computer Science, Institute of Electrical and Electronics Engineers, 2013,
pp. 538–47, doi:10.1109/focs.2013.64.'
short: M.H. Henzinger, S. Krinninger, D. Nanongkai, in:, 54th Annual Symposium on
Foundations of Computer Science, Institute of Electrical and Electronics Engineers,
2013, pp. 538–547.
conference:
end_date: 2013-10-29
location: Berkeley, CA, United States
name: 'FOCS: Symposium on Foundations of Computer Science'
start_date: 2013-10-26
date_created: 2022-08-16T08:22:37Z
date_published: 2013-10-01T00:00:00Z
date_updated: 2023-02-17T09:56:04Z
day: '01'
doi: 10.1109/focs.2013.64
extern: '1'
external_id:
arxiv:
- '1308.0776'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1308.0776
month: '10'
oa: 1
oa_version: Preprint
page: 538-547
publication: 54th Annual Symposium on Foundations of Computer Science
publication_identifier:
eisbn:
- 978-0-7695-5135-7
issn:
- 0272-5428
publication_status: published
publisher: Institute of Electrical and Electronics Engineers
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Dynamic approximate all-pairs shortest paths: Breaking the O(mn) barrier and
derandomization'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2013'
...
---
_id: '11902'
abstract:
- lang: eng
text: "We study the problem of matching bidders to items where each bidder i has
general, strictly monotonic utility functions ui,j(pj) expressing his utility
of being matched to item j at price pj. For this setting we prove that a bidder
optimal outcome always exists, even when the utility functions are non-linear
and non-continuous. We give sufficient conditions under\r\nwhich every mechanism
that finds a bidder optimal outcome is incentive compatible. We also give a mechanism
that finds a bidder optimal outcome if the conditions for incentive compatibility
are satisfied. The running time of this mechanism is exponential in the number
of items, but polynomial in the number of bidders."
article_processing_charge: No
article_type: original
author:
- first_name: Paul
full_name: Dütting, Paul
last_name: Dütting
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
- first_name: Ingmar
full_name: Weber, Ingmar
last_name: Weber
citation:
ama: Dütting P, Henzinger MH, Weber I. Bidder optimal assignments for general utilities.
Theoretical Computer Science. 2013;478(3):22-32. doi:10.1016/j.tcs.2013.01.030
apa: Dütting, P., Henzinger, M. H., & Weber, I. (2013). Bidder optimal assignments
for general utilities. Theoretical Computer Science. Elsevier. https://doi.org/10.1016/j.tcs.2013.01.030
chicago: Dütting, Paul, Monika H Henzinger, and Ingmar Weber. “Bidder Optimal Assignments
for General Utilities.” Theoretical Computer Science. Elsevier, 2013. https://doi.org/10.1016/j.tcs.2013.01.030.
ieee: P. Dütting, M. H. Henzinger, and I. Weber, “Bidder optimal assignments for
general utilities,” Theoretical Computer Science, vol. 478, no. 3. Elsevier,
pp. 22–32, 2013.
ista: Dütting P, Henzinger MH, Weber I. 2013. Bidder optimal assignments for general
utilities. Theoretical Computer Science. 478(3), 22–32.
mla: Dütting, Paul, et al. “Bidder Optimal Assignments for General Utilities.” Theoretical
Computer Science, vol. 478, no. 3, Elsevier, 2013, pp. 22–32, doi:10.1016/j.tcs.2013.01.030.
short: P. Dütting, M.H. Henzinger, I. Weber, Theoretical Computer Science 478 (2013)
22–32.
date_created: 2022-08-17T11:11:04Z
date_published: 2013-03-25T00:00:00Z
date_updated: 2023-02-21T16:28:41Z
day: '25'
doi: 10.1016/j.tcs.2013.01.030
extern: '1'
intvolume: ' 478'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 22-32
publication: Theoretical Computer Science
publication_identifier:
issn:
- 0304-3975
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
record:
- id: '11799'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Bidder optimal assignments for general utilities
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 478
year: '2013'
...
---
_id: '11959'
abstract:
- lang: eng
text: No catalyst required! A highly efficient, catalyst-free process to generate
diimide in situ from hydrazine monohydrate and molecular oxygen for the selective
reduction of alkenes has been developed. The use of a gas–liquid segmented flow
system allowed safe operating conditions and dramatically enhanced this atom-economical
reaction, resulting in short processing times.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Bartholomäus
full_name: Pieber, Bartholomäus
id: 93e5e5b2-0da6-11ed-8a41-af589a024726
last_name: Pieber
orcid: 0000-0001-8689-388X
- first_name: Sabrina Teixeira
full_name: Martinez, Sabrina Teixeira
last_name: Martinez
- first_name: David
full_name: Cantillo, David
last_name: Cantillo
- first_name: C. Oliver
full_name: Kappe, C. Oliver
last_name: Kappe
citation:
ama: 'Pieber B, Martinez ST, Cantillo D, Kappe CO. In situ generation of diimide
from hydrazine and oxygen: Continuous-flow transfer hydrogenation of olefins.
Angewandte Chemie International Edition. 2013;52(39):10241-10244. doi:10.1002/anie.201303528'
apa: 'Pieber, B., Martinez, S. T., Cantillo, D., & Kappe, C. O. (2013). In situ
generation of diimide from hydrazine and oxygen: Continuous-flow transfer hydrogenation
of olefins. Angewandte Chemie International Edition. Wiley. https://doi.org/10.1002/anie.201303528'
chicago: 'Pieber, Bartholomäus, Sabrina Teixeira Martinez, David Cantillo, and C.
Oliver Kappe. “In Situ Generation of Diimide from Hydrazine and Oxygen: Continuous-Flow
Transfer Hydrogenation of Olefins.” Angewandte Chemie International Edition.
Wiley, 2013. https://doi.org/10.1002/anie.201303528.'
ieee: 'B. Pieber, S. T. Martinez, D. Cantillo, and C. O. Kappe, “In situ generation
of diimide from hydrazine and oxygen: Continuous-flow transfer hydrogenation of
olefins,” Angewandte Chemie International Edition, vol. 52, no. 39. Wiley,
pp. 10241–10244, 2013.'
ista: 'Pieber B, Martinez ST, Cantillo D, Kappe CO. 2013. In situ generation of
diimide from hydrazine and oxygen: Continuous-flow transfer hydrogenation of olefins.
Angewandte Chemie International Edition. 52(39), 10241–10244.'
mla: 'Pieber, Bartholomäus, et al. “In Situ Generation of Diimide from Hydrazine
and Oxygen: Continuous-Flow Transfer Hydrogenation of Olefins.” Angewandte
Chemie International Edition, vol. 52, no. 39, Wiley, 2013, pp. 10241–44,
doi:10.1002/anie.201303528.'
short: B. Pieber, S.T. Martinez, D. Cantillo, C.O. Kappe, Angewandte Chemie International
Edition 52 (2013) 10241–10244.
date_created: 2022-08-24T11:01:47Z
date_published: 2013-09-23T00:00:00Z
date_updated: 2023-02-21T10:09:21Z
day: '23'
doi: 10.1002/anie.201303528
extern: '1'
intvolume: ' 52'
issue: '39'
language:
- iso: eng
month: '09'
oa_version: None
page: 10241-10244
publication: Angewandte Chemie International Edition
publication_identifier:
eissn:
- 1521-3773
issn:
- 1433-7851
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'In situ generation of diimide from hydrazine and oxygen: Continuous-flow transfer
hydrogenation of olefins'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 52
year: '2013'
...
---
_id: '11960'
abstract:
- lang: eng
text: It's not magic! The effects observed in microwave-irradiated chemical transformations
can in most cases be rationalized by purely bulk thermal phenomena associated
with rapid heating to elevated temperatures. As discussed in this Essay, the existence
of so-called nonthermal or specific microwave effects is highly doubtful.
article_processing_charge: No
article_type: letter_note
author:
- first_name: C. Oliver
full_name: Kappe, C. Oliver
last_name: Kappe
- first_name: Bartholomäus
full_name: Pieber, Bartholomäus
id: 93e5e5b2-0da6-11ed-8a41-af589a024726
last_name: Pieber
orcid: 0000-0001-8689-388X
- first_name: Doris
full_name: Dallinger, Doris
last_name: Dallinger
citation:
ama: 'Kappe CO, Pieber B, Dallinger D. Microwave effects in organic synthesis: Myth
or reality? Angewandte Chemie International Edition. 2013;52(4):1088-1094.
doi:10.1002/anie.201204103'
apa: 'Kappe, C. O., Pieber, B., & Dallinger, D. (2013). Microwave effects in
organic synthesis: Myth or reality? Angewandte Chemie International Edition.
Wiley. https://doi.org/10.1002/anie.201204103'
chicago: 'Kappe, C. Oliver, Bartholomäus Pieber, and Doris Dallinger. “Microwave
Effects in Organic Synthesis: Myth or Reality?” Angewandte Chemie International
Edition. Wiley, 2013. https://doi.org/10.1002/anie.201204103.'
ieee: 'C. O. Kappe, B. Pieber, and D. Dallinger, “Microwave effects in organic synthesis:
Myth or reality?,” Angewandte Chemie International Edition, vol. 52, no.
4. Wiley, pp. 1088–1094, 2013.'
ista: 'Kappe CO, Pieber B, Dallinger D. 2013. Microwave effects in organic synthesis:
Myth or reality? Angewandte Chemie International Edition. 52(4), 1088–1094.'
mla: 'Kappe, C. Oliver, et al. “Microwave Effects in Organic Synthesis: Myth or
Reality?” Angewandte Chemie International Edition, vol. 52, no. 4, Wiley,
2013, pp. 1088–94, doi:10.1002/anie.201204103.'
short: C.O. Kappe, B. Pieber, D. Dallinger, Angewandte Chemie International Edition
52 (2013) 1088–1094.
date_created: 2022-08-24T11:05:04Z
date_published: 2013-01-21T00:00:00Z
date_updated: 2023-02-21T10:09:26Z
day: '21'
doi: 10.1002/anie.201204103
extern: '1'
intvolume: ' 52'
issue: '4'
language:
- iso: eng
month: '01'
oa_version: None
page: 1088-1094
publication: Angewandte Chemie International Edition
publication_identifier:
eissn:
- 1521-3773
issn:
- 1433-7851
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Microwave effects in organic synthesis: Myth or reality?'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 52
year: '2013'
...
---
_id: '11973'
abstract:
- lang: eng
text: The use of high-temperature/pressure gas–liquid continuous flow conditions
dramatically enhances the iron-catalyzed aerobic oxidation of 2-benzylpyridines
to their corresponding ketones. Pressurized air serves as a readily available
oxygen source and propylene carbonate as a green solvent in this radically intensified
preparation of synthetically valuable 2-aroylpyridines.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Bartholomäus
full_name: Pieber, Bartholomäus
id: 93e5e5b2-0da6-11ed-8a41-af589a024726
last_name: Pieber
orcid: 0000-0001-8689-388X
- first_name: C. Oliver
full_name: Kappe, C. Oliver
last_name: Kappe
citation:
ama: Pieber B, Kappe CO. Direct aerobic oxidation of 2-benzylpyridines in a gas-liquid
continuous-flow regime using propylene carbonate as a solvent. Green Chemistry.
2013;15(2):320-324. doi:10.1039/c2gc36896j
apa: Pieber, B., & Kappe, C. O. (2013). Direct aerobic oxidation of 2-benzylpyridines
in a gas-liquid continuous-flow regime using propylene carbonate as a solvent.
Green Chemistry. Royal Society of Chemistry. https://doi.org/10.1039/c2gc36896j
chicago: Pieber, Bartholomäus, and C. Oliver Kappe. “Direct Aerobic Oxidation of
2-Benzylpyridines in a Gas-Liquid Continuous-Flow Regime Using Propylene Carbonate
as a Solvent.” Green Chemistry. Royal Society of Chemistry, 2013. https://doi.org/10.1039/c2gc36896j.
ieee: B. Pieber and C. O. Kappe, “Direct aerobic oxidation of 2-benzylpyridines
in a gas-liquid continuous-flow regime using propylene carbonate as a solvent,”
Green Chemistry, vol. 15, no. 2. Royal Society of Chemistry, pp. 320–324,
2013.
ista: Pieber B, Kappe CO. 2013. Direct aerobic oxidation of 2-benzylpyridines in
a gas-liquid continuous-flow regime using propylene carbonate as a solvent. Green
Chemistry. 15(2), 320–324.
mla: Pieber, Bartholomäus, and C. Oliver Kappe. “Direct Aerobic Oxidation of 2-Benzylpyridines
in a Gas-Liquid Continuous-Flow Regime Using Propylene Carbonate as a Solvent.”
Green Chemistry, vol. 15, no. 2, Royal Society of Chemistry, 2013, pp.
320–24, doi:10.1039/c2gc36896j.
short: B. Pieber, C.O. Kappe, Green Chemistry 15 (2013) 320–324.
date_created: 2022-08-25T10:29:21Z
date_published: 2013-02-01T00:00:00Z
date_updated: 2023-02-21T10:09:54Z
day: '01'
doi: 10.1039/c2gc36896j
extern: '1'
intvolume: ' 15'
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
page: 320-324
publication: Green Chemistry
publication_identifier:
eissn:
- 1463-9270
issn:
- 1463-9262
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
scopus_import: '1'
status: public
title: Direct aerobic oxidation of 2-benzylpyridines in a gas-liquid continuous-flow
regime using propylene carbonate as a solvent
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2013'
...
---
_id: '12633'
abstract:
- lang: eng
text: We use two hydrological models of varying complexity to study the Juncal River
Basin in the Central Andes of Chile with the aim to understand the degree of conceptualization
and the spatial structure that are needed to model present and future streamflows.
We use a conceptual semi-distributed model based on elevation bands [Water Evaluation
and Planning (WEAP)], frequently used for water management, and a physically oriented,
fully distributed model [Topographic Kinematic Wave Approximation and Integration
ETH Zurich (TOPKAPI-ETH)] developed for research purposes mainly. We evaluate
the ability of the two models to reproduce the key hydrological processes in the
basin with emphasis on snow accumulation and melt, streamflow and the relationships
between internal processes. Both models are capable of reproducing observed runoff
and the evolution of Moderate-resolution Imaging Spectroradiometer snow cover
adequately. In spite of WEAP's simple and conceptual approach for modelling snowmelt
and its lack of glacier representation and snow gravitational redistribution as
well as a proper routing algorithm, this model can reproduce historical data with
a similar goodness of fit as the more complex TOPKAPI-ETH. We show that the performance
of both models can be improved by using measured precipitation gradients of higher
temporal resolution. In contrast to the good performance of the conceptual model
for the present climate, however, we demonstrate that the simplifications in WEAP
lead to error compensation, which results in different predictions in simulated
melt and runoff for a potentially warmer future climate. TOPKAPI-ETH, using a
more physical representation of processes, depends less on calibration and thus
is less subject to a compensation of errors through different model components.
Our results show that data obtained locally in ad hoc short-term field campaigns
are needed to complement data extrapolated from long-term records for simulating
changes in the water cycle of high-elevation catchments but that these data can
only be efficiently used by a model applying a spatially distributed physical
representation of hydrological processes.
article_processing_charge: No
article_type: original
author:
- first_name: S.
full_name: Ragettli, S.
last_name: Ragettli
- first_name: G.
full_name: Cortés, G.
last_name: Cortés
- first_name: J.
full_name: McPhee, J.
last_name: McPhee
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Ragettli S, Cortés G, McPhee J, Pellicciotti F. An evaluation of approaches
for modelling hydrological processes in high-elevation, glacierized Andean watersheds.
Hydrological Processes. 2013;28(23):5674-5695. doi:10.1002/hyp.10055
apa: Ragettli, S., Cortés, G., McPhee, J., & Pellicciotti, F. (2013). An evaluation
of approaches for modelling hydrological processes in high-elevation, glacierized
Andean watersheds. Hydrological Processes. Wiley. https://doi.org/10.1002/hyp.10055
chicago: Ragettli, S., G. Cortés, J. McPhee, and Francesca Pellicciotti. “An Evaluation
of Approaches for Modelling Hydrological Processes in High-Elevation, Glacierized
Andean Watersheds.” Hydrological Processes. Wiley, 2013. https://doi.org/10.1002/hyp.10055.
ieee: S. Ragettli, G. Cortés, J. McPhee, and F. Pellicciotti, “An evaluation of
approaches for modelling hydrological processes in high-elevation, glacierized
Andean watersheds,” Hydrological Processes, vol. 28, no. 23. Wiley, pp.
5674–5695, 2013.
ista: Ragettli S, Cortés G, McPhee J, Pellicciotti F. 2013. An evaluation of approaches
for modelling hydrological processes in high-elevation, glacierized Andean watersheds.
Hydrological Processes. 28(23), 5674–5695.
mla: Ragettli, S., et al. “An Evaluation of Approaches for Modelling Hydrological
Processes in High-Elevation, Glacierized Andean Watersheds.” Hydrological Processes,
vol. 28, no. 23, Wiley, 2013, pp. 5674–95, doi:10.1002/hyp.10055.
short: S. Ragettli, G. Cortés, J. McPhee, F. Pellicciotti, Hydrological Processes
28 (2013) 5674–5695.
date_created: 2023-02-20T08:16:39Z
date_published: 2013-09-06T00:00:00Z
date_updated: 2023-02-24T08:48:40Z
day: '06'
doi: 10.1002/hyp.10055
extern: '1'
intvolume: ' 28'
issue: '23'
keyword:
- Water Science and Technology
language:
- iso: eng
month: '09'
oa_version: None
page: 5674-5695
publication: Hydrological Processes
publication_identifier:
issn:
- 0885-6087
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: An evaluation of approaches for modelling hydrological processes in high-elevation,
glacierized Andean watersheds
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 28
year: '2013'
...
---
_id: '12638'
abstract:
- lang: eng
text: Central Asian water resources largely depend on melt water generated in the
Pamir and Tien Shan mountain ranges. To estimate future water availability in
this region, it is necessary to use climate projections to estimate the future
glacier extent and volume. In this study, we evaluate the impact of uncertainty
in climate change projections on the future glacier extent in the Amu and Syr
Darya river basins. To this end we use the latest climate change projections generated
for the upcoming IPCC report (CMIP5) and, for comparison, projections used in
the fourth IPCC assessment (CMIP3). With these projections we force a regionalized
glacier mass balance model, and estimate changes in the basins' glacier extent
as a function of the glacier size distribution in the basins and projected temperature
and precipitation. This glacier mass balance model is specifically developed for
implementation in large scale hydrological models, where the spatial resolution
does not allow for simulating individual glaciers and data scarcity is an issue.
Although the CMIP5 ensemble results in greater regional warming than the CMIP3
ensemble and the range in projections for temperature as well as precipitation
is wider for the CMIP5 than for the CMIP3, the spread in projections of future
glacier extent in Central Asia is similar for both ensembles. This is because
differences in temperature rise are small during periods of maximum melt (July–September)
while differences in precipitation change are small during the period of maximum
accumulation (October–February). However, the model uncertainty due to parameter
uncertainty is high, and has roughly the same importance as uncertainty in the
climate projections. Uncertainty about the size of the decline in glacier extent
remains large, making estimates of future Central Asian glacier evolution and
downstream water availability uncertain.
article_processing_charge: No
article_type: original
author:
- first_name: A. F.
full_name: Lutz, A. F.
last_name: Lutz
- first_name: W. W.
full_name: Immerzeel, W. W.
last_name: Immerzeel
- first_name: A.
full_name: Gobiet, A.
last_name: Gobiet
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: M. F. P.
full_name: Bierkens, M. F. P.
last_name: Bierkens
citation:
ama: Lutz AF, Immerzeel WW, Gobiet A, Pellicciotti F, Bierkens MFP. Comparison of
climate change signals in CMIP3 and CMIP5 multi-model ensembles and implications
for Central Asian glaciers. Hydrology and Earth System Sciences. 2013;17(9):3661-3677.
doi:10.5194/hess-17-3661-2013
apa: Lutz, A. F., Immerzeel, W. W., Gobiet, A., Pellicciotti, F., & Bierkens,
M. F. P. (2013). Comparison of climate change signals in CMIP3 and CMIP5 multi-model
ensembles and implications for Central Asian glaciers. Hydrology and Earth
System Sciences. Copernicus GmbH. https://doi.org/10.5194/hess-17-3661-2013
chicago: Lutz, A. F., W. W. Immerzeel, A. Gobiet, Francesca Pellicciotti, and M.
F. P. Bierkens. “Comparison of Climate Change Signals in CMIP3 and CMIP5 Multi-Model
Ensembles and Implications for Central Asian Glaciers.” Hydrology and Earth
System Sciences. Copernicus GmbH, 2013. https://doi.org/10.5194/hess-17-3661-2013.
ieee: A. F. Lutz, W. W. Immerzeel, A. Gobiet, F. Pellicciotti, and M. F. P. Bierkens,
“Comparison of climate change signals in CMIP3 and CMIP5 multi-model ensembles
and implications for Central Asian glaciers,” Hydrology and Earth System Sciences,
vol. 17, no. 9. Copernicus GmbH, pp. 3661–3677, 2013.
ista: Lutz AF, Immerzeel WW, Gobiet A, Pellicciotti F, Bierkens MFP. 2013. Comparison
of climate change signals in CMIP3 and CMIP5 multi-model ensembles and implications
for Central Asian glaciers. Hydrology and Earth System Sciences. 17(9), 3661–3677.
mla: Lutz, A. F., et al. “Comparison of Climate Change Signals in CMIP3 and CMIP5
Multi-Model Ensembles and Implications for Central Asian Glaciers.” Hydrology
and Earth System Sciences, vol. 17, no. 9, Copernicus GmbH, 2013, pp. 3661–77,
doi:10.5194/hess-17-3661-2013.
short: A.F. Lutz, W.W. Immerzeel, A. Gobiet, F. Pellicciotti, M.F.P. Bierkens, Hydrology
and Earth System Sciences 17 (2013) 3661–3677.
date_created: 2023-02-20T08:17:05Z
date_published: 2013-09-01T00:00:00Z
date_updated: 2023-02-24T08:19:48Z
day: '01'
doi: 10.5194/hess-17-3661-2013
extern: '1'
intvolume: ' 17'
issue: '9'
keyword:
- General Earth and Planetary Sciences
- General Engineering
- General Environmental Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/hess-17-3661-2013
month: '09'
oa: 1
oa_version: Published Version
page: 3661-3677
publication: Hydrology and Earth System Sciences
publication_identifier:
issn:
- 1607-7938
publication_status: published
publisher: Copernicus GmbH
quality_controlled: '1'
scopus_import: '1'
status: public
title: Comparison of climate change signals in CMIP3 and CMIP5 multi-model ensembles
and implications for Central Asian glaciers
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 17
year: '2013'
...
---
_id: '12639'
abstract:
- lang: eng
text: 'In the headwater catchments of the main Asian rivers, glaciohydrological
models are a useful tool to anticipate impacts of climatic changes. However, the
reliability of their projections strongly depends on the quality and quantity
of data that are available for parameter estimation, model calibration and validation,
as well as on the accuracy of climate change projections. In this study the physically
oriented, glaciohydrological model TOPKAPI-ETH is used to simulate future changes
in snow, glacier, and runoff from the Hunza River Basin in northern Pakistan.
Three key sources of model uncertainty in future runoff projections are compared:
model parameters, climate projections, and natural climate variability. A novel
approach, applicable also to ungauged catchments, is used to determine which model
parameters and model components significantly affect the overall model uncertainty.
We show that the model is capable of reproducing streamflow and glacier mass balances,
but that all analyzed sources of uncertainty significantly affect the reliability
of future projections, and that their effect is variable in time and in space.
The effect of parametric uncertainty often exceeds the impact of climate uncertainty
and natural climate variability, especially in heavily glacierized subcatchments.
The results of the uncertainty analysis allow detailed recommendations on network
design and the timing and location of field measurements, which could efficiently
help to reduce model uncertainty in the future.'
article_processing_charge: No
article_type: original
author:
- first_name: S.
full_name: Ragettli, S.
last_name: Ragettli
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: R.
full_name: Bordoy, R.
last_name: Bordoy
- first_name: W. W.
full_name: Immerzeel, W. W.
last_name: Immerzeel
citation:
ama: Ragettli S, Pellicciotti F, Bordoy R, Immerzeel WW. Sources of uncertainty
in modeling the glaciohydrological response of a Karakoram watershed to climate
change. Water Resources Research. 2013;49(9):6048-6066. doi:10.1002/wrcr.20450
apa: Ragettli, S., Pellicciotti, F., Bordoy, R., & Immerzeel, W. W. (2013).
Sources of uncertainty in modeling the glaciohydrological response of a Karakoram
watershed to climate change. Water Resources Research. American Geophysical
Union. https://doi.org/10.1002/wrcr.20450
chicago: Ragettli, S., Francesca Pellicciotti, R. Bordoy, and W. W. Immerzeel. “Sources
of Uncertainty in Modeling the Glaciohydrological Response of a Karakoram Watershed
to Climate Change.” Water Resources Research. American Geophysical Union,
2013. https://doi.org/10.1002/wrcr.20450.
ieee: S. Ragettli, F. Pellicciotti, R. Bordoy, and W. W. Immerzeel, “Sources of
uncertainty in modeling the glaciohydrological response of a Karakoram watershed
to climate change,” Water Resources Research, vol. 49, no. 9. American
Geophysical Union, pp. 6048–6066, 2013.
ista: Ragettli S, Pellicciotti F, Bordoy R, Immerzeel WW. 2013. Sources of uncertainty
in modeling the glaciohydrological response of a Karakoram watershed to climate
change. Water Resources Research. 49(9), 6048–6066.
mla: Ragettli, S., et al. “Sources of Uncertainty in Modeling the Glaciohydrological
Response of a Karakoram Watershed to Climate Change.” Water Resources Research,
vol. 49, no. 9, American Geophysical Union, 2013, pp. 6048–66, doi:10.1002/wrcr.20450.
short: S. Ragettli, F. Pellicciotti, R. Bordoy, W.W. Immerzeel, Water Resources
Research 49 (2013) 6048–6066.
date_created: 2023-02-20T08:17:12Z
date_published: 2013-03-01T00:00:00Z
date_updated: 2023-02-24T08:16:19Z
day: '01'
doi: 10.1002/wrcr.20450
extern: '1'
intvolume: ' 49'
issue: '9'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/wrcr.20450
month: '03'
oa: 1
oa_version: Published Version
page: 6048-6066
publication: Water Resources Research
publication_identifier:
issn:
- 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Sources of uncertainty in modeling the glaciohydrological response of a Karakoram
watershed to climate change
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 49
year: '2013'
...
---
_id: '12640'
abstract:
- lang: eng
text: Greater Himalayan glaciers are retreating and losing mass at rates comparable
to glaciers in other regions of the world1,2,3,4,5. Assessments of future changes
and their associated hydrological impacts are scarce, oversimplify glacier dynamics
or include a limited number of climate models6,7,8,9. Here, we use results from
the latest ensemble of climate models in combination with a high-resolution glacio-hydrological
model to assess the hydrological impact of climate change on two climatically
contrasting watersheds in the Greater Himalaya, the Baltoro and Langtang watersheds
that drain into the Indus and Ganges rivers, respectively. We show that the largest
uncertainty in future runoff is a result of variations in projected precipitation
between climate models. In both watersheds, strong, but highly variable, increases
in future runoff are projected and, despite the different characteristics of the
watersheds, their responses are surprisingly similar. In both cases, glaciers
will recede but net glacier melt runoff is on a rising limb at least until 2050.
In combination with a positive change in precipitation, water availability during
this century is not likely to decline. We conclude that river basins that depend
on monsoon rains and glacier melt will continue to sustain the increasing water
demands expected in these areas10.
article_processing_charge: No
article_type: letter_note
author:
- first_name: W. W.
full_name: Immerzeel, W. W.
last_name: Immerzeel
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: M. F. P.
full_name: Bierkens, M. F. P.
last_name: Bierkens
citation:
ama: Immerzeel WW, Pellicciotti F, Bierkens MFP. Rising river flows throughout the
twenty-first century in two Himalayan glacierized watersheds. Nature Geoscience.
2013;6(9):742-745. doi:10.1038/ngeo1896
apa: Immerzeel, W. W., Pellicciotti, F., & Bierkens, M. F. P. (2013). Rising
river flows throughout the twenty-first century in two Himalayan glacierized watersheds.
Nature Geoscience. Springer Nature. https://doi.org/10.1038/ngeo1896
chicago: Immerzeel, W. W., Francesca Pellicciotti, and M. F. P. Bierkens. “Rising
River Flows throughout the Twenty-First Century in Two Himalayan Glacierized Watersheds.”
Nature Geoscience. Springer Nature, 2013. https://doi.org/10.1038/ngeo1896.
ieee: W. W. Immerzeel, F. Pellicciotti, and M. F. P. Bierkens, “Rising river flows
throughout the twenty-first century in two Himalayan glacierized watersheds,”
Nature Geoscience, vol. 6, no. 9. Springer Nature, pp. 742–745, 2013.
ista: Immerzeel WW, Pellicciotti F, Bierkens MFP. 2013. Rising river flows throughout
the twenty-first century in two Himalayan glacierized watersheds. Nature Geoscience.
6(9), 742–745.
mla: Immerzeel, W. W., et al. “Rising River Flows throughout the Twenty-First Century
in Two Himalayan Glacierized Watersheds.” Nature Geoscience, vol. 6, no.
9, Springer Nature, 2013, pp. 742–45, doi:10.1038/ngeo1896.
short: W.W. Immerzeel, F. Pellicciotti, M.F.P. Bierkens, Nature Geoscience 6 (2013)
742–745.
date_created: 2023-02-20T08:17:17Z
date_published: 2013-09-13T00:00:00Z
date_updated: 2023-02-21T10:46:37Z
day: '13'
doi: 10.1038/ngeo1896
extern: '1'
intvolume: ' 6'
issue: '9'
keyword:
- General Earth and Planetary Sciences
language:
- iso: eng
month: '09'
oa_version: None
page: 742-745
publication: Nature Geoscience
publication_identifier:
eissn:
- 1752-0908
issn:
- 1752-0894
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Rising river flows throughout the twenty-first century in two Himalayan glacierized
watersheds
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2013'
...
---
_id: '12641'
abstract:
- lang: eng
text: We investigate the sensitivity of a distributed enhanced temperature-index
(ETI) melt model, in order to understand which parameters have the largest influence
on model outputs and thus need to be accurately known. We use melt and meteorological
data from two Alpine glaciers and one glacier in the Andes of Chile. Sensitivity
analysis is conducted in a systematic way in terms of parameters and the different
conditions (day, night, clear-sky, overcast), melt seasons and glaciers examined.
The sensitivity of total melt to changes in individual parameters is calculated
using a local method around the optimal value of the parameters. We verify that
the parameters are optimal at the distributed scale and assess the model uncertainty
induced by uncertainty in the parameters using a Monte Carlo technique. Model
sensitivity to parameters is consistent across melt seasons, glaciers, different
conditions and the daily statistics examined. The parameters to which the model
is most sensitive are the shortwave-radiation factor, the temperature lapse rate
for extrapolation of air temperature, the albedo parameters, the temperature threshold
and the cloud transmittance factor parameters. A parameter uncertainty of 5% results
in a model uncertainty of 5.6% of mean melt on Haut Glacier d’Arolla, Switzerland.
article_processing_charge: No
article_type: original
author:
- first_name: Martin
full_name: Heynen, Martin
last_name: Heynen
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Marco
full_name: Carenzo, Marco
last_name: Carenzo
citation:
ama: Heynen M, Pellicciotti F, Carenzo M. Parameter sensitivity of a distributed
enhanced temperature-index melt model. Annals of Glaciology. 2013;54(63):311-321.
doi:10.3189/2013aog63a537
apa: Heynen, M., Pellicciotti, F., & Carenzo, M. (2013). Parameter sensitivity
of a distributed enhanced temperature-index melt model. Annals of Glaciology.
International Glaciological Society. https://doi.org/10.3189/2013aog63a537
chicago: Heynen, Martin, Francesca Pellicciotti, and Marco Carenzo. “Parameter Sensitivity
of a Distributed Enhanced Temperature-Index Melt Model.” Annals of Glaciology.
International Glaciological Society, 2013. https://doi.org/10.3189/2013aog63a537.
ieee: M. Heynen, F. Pellicciotti, and M. Carenzo, “Parameter sensitivity of a distributed
enhanced temperature-index melt model,” Annals of Glaciology, vol. 54,
no. 63. International Glaciological Society, pp. 311–321, 2013.
ista: Heynen M, Pellicciotti F, Carenzo M. 2013. Parameter sensitivity of a distributed
enhanced temperature-index melt model. Annals of Glaciology. 54(63), 311–321.
mla: Heynen, Martin, et al. “Parameter Sensitivity of a Distributed Enhanced Temperature-Index
Melt Model.” Annals of Glaciology, vol. 54, no. 63, International Glaciological
Society, 2013, pp. 311–21, doi:10.3189/2013aog63a537.
short: M. Heynen, F. Pellicciotti, M. Carenzo, Annals of Glaciology 54 (2013) 311–321.
date_created: 2023-02-20T08:17:21Z
date_published: 2013-08-01T00:00:00Z
date_updated: 2023-02-21T10:43:42Z
day: '01'
doi: 10.3189/2013aog63a537
extern: '1'
intvolume: ' 54'
issue: '63'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2013aog63a537
month: '08'
oa: 1
oa_version: Published Version
page: 311-321
publication: Annals of Glaciology
publication_identifier:
eissn:
- 1727-5644
issn:
- 0260-3055
publication_status: published
publisher: International Glaciological Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Parameter sensitivity of a distributed enhanced temperature-index melt model
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 54
year: '2013'
...
---
_id: '12642'
abstract:
- lang: eng
text: Near-surface air temperature, typically measured at a height of 2 m, is the
most important control on the energy exchange and the melt rate at a snow or ice
surface. It is distributed in a simplistic manner in most glacier melt models
by using constant linear lapse rates, which poorly represent the actual spatial
and temporal variability of air temperature. In this paper, we test a simple thermodynamic
model proposed by Greuell and Böhm in 1998 as an alternative, using a new dataset
of air temperature measurements from along the flowline of Haut Glacier d’Arolla,
Switzerland. The unmodified model performs little better than assuming a constant
linear lapse rate. When modified to allow the ratio of the boundary layer height
to the bulk heat transfer coefficient to vary along the flowline, the model matches
measured air temperatures better, and a further reduction of the root-mean-square
error is obtained, although there is still considerable scope for improvement.
The modified model is shown to perform best under conditions favourable to the
development of katabatic winds – few clouds, positive ambient air temperature,
limited influence of synoptic or valley winds and a long fetch – but its performance
is poor under cloudy conditions.
article_processing_charge: No
article_type: original
author:
- first_name: Lene
full_name: Petersen, Lene
last_name: Petersen
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Inge
full_name: Juszak, Inge
last_name: Juszak
- first_name: Marco
full_name: Carenzo, Marco
last_name: Carenzo
- first_name: Ben
full_name: Brock, Ben
last_name: Brock
citation:
ama: 'Petersen L, Pellicciotti F, Juszak I, Carenzo M, Brock B. Suitability of a
constant air temperature lapse rate over an Alpine glacier: Testing the Greuell
and Böhm model as an alternative. Annals of Glaciology. 2013;54(63):120-130.
doi:10.3189/2013aog63a477'
apa: 'Petersen, L., Pellicciotti, F., Juszak, I., Carenzo, M., & Brock, B. (2013).
Suitability of a constant air temperature lapse rate over an Alpine glacier: Testing
the Greuell and Böhm model as an alternative. Annals of Glaciology. International
Glaciological Society. https://doi.org/10.3189/2013aog63a477'
chicago: 'Petersen, Lene, Francesca Pellicciotti, Inge Juszak, Marco Carenzo, and
Ben Brock. “Suitability of a Constant Air Temperature Lapse Rate over an Alpine
Glacier: Testing the Greuell and Böhm Model as an Alternative.” Annals of Glaciology.
International Glaciological Society, 2013. https://doi.org/10.3189/2013aog63a477.'
ieee: 'L. Petersen, F. Pellicciotti, I. Juszak, M. Carenzo, and B. Brock, “Suitability
of a constant air temperature lapse rate over an Alpine glacier: Testing the Greuell
and Böhm model as an alternative,” Annals of Glaciology, vol. 54, no. 63.
International Glaciological Society, pp. 120–130, 2013.'
ista: 'Petersen L, Pellicciotti F, Juszak I, Carenzo M, Brock B. 2013. Suitability
of a constant air temperature lapse rate over an Alpine glacier: Testing the Greuell
and Böhm model as an alternative. Annals of Glaciology. 54(63), 120–130.'
mla: 'Petersen, Lene, et al. “Suitability of a Constant Air Temperature Lapse Rate
over an Alpine Glacier: Testing the Greuell and Böhm Model as an Alternative.”
Annals of Glaciology, vol. 54, no. 63, International Glaciological Society,
2013, pp. 120–30, doi:10.3189/2013aog63a477.'
short: L. Petersen, F. Pellicciotti, I. Juszak, M. Carenzo, B. Brock, Annals of
Glaciology 54 (2013) 120–130.
date_created: 2023-02-20T08:17:29Z
date_published: 2013-08-01T00:00:00Z
date_updated: 2023-02-21T10:18:24Z
day: '01'
doi: 10.3189/2013aog63a477
extern: '1'
intvolume: ' 54'
issue: '63'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2013aog63a477
month: '08'
oa: 1
oa_version: Published Version
page: 120-130
publication: Annals of Glaciology
publication_identifier:
eissn:
- 1727-5644
issn:
- 0260-3055
publication_status: published
publisher: International Glaciological Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Suitability of a constant air temperature lapse rate over an Alpine glacier:
Testing the Greuell and Böhm model as an alternative'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 54
year: '2013'
...
---
_id: '12643'
abstract:
- lang: eng
text: Parameterizations of incoming longwave radiation are increasingly receiving
attention for both low and high elevation glacierized sites. In this paper, we
test 13 clear-sky parameterizations combined with seven cloud corrections for
all-sky atmospheric emissivity at one location on Haut Glacier d'Arolla. We also
analyze the four seasons separately and conduct a cross-validation to test the
parameters’ robustness. The best parameterization is the one by Dilley and O'Brien,
B for clear-sky conditions combined with Unsworth and Monteith cloud correction.
This model is also the most robust when tested in cross-validation. When validated
at different sites in the southern Alps of Switzerland and north-western Italian
Alps, all parameterizations show a substantial decrease in performance, except
for one site, thus suggesting that it is important to recalibrate parameterizations
of incoming longwave radiation for different locations. We argue that this is
due to differences in the structure of the atmosphere at the sites. We also quantify
the effect that the incoming longwave radiation parameterizations have on energy-balance
melt modeling, and show that recalibration of model parameters is needed. Using
parameters from other sites leads to a significant underestimation of melt and
to an error that is larger than that associated with using different parameterizations.
Once recalibrated, however, the parameters of most models seem to be stable over
seasons and years at the location on Haut Glacier d'Arolla.
article_processing_charge: No
article_type: original
author:
- first_name: I.
full_name: Juszak, I.
last_name: Juszak
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: 'Juszak I, Pellicciotti F. A comparison of parameterizations of incoming longwave
radiation over melting glaciers: Model robustness and seasonal variability. Journal
of Geophysical Research: Atmospheres. 2013;118(8):3066-3084. doi:10.1002/jgrd.50277'
apa: 'Juszak, I., & Pellicciotti, F. (2013). A comparison of parameterizations
of incoming longwave radiation over melting glaciers: Model robustness and seasonal
variability. Journal of Geophysical Research: Atmospheres. American Geophysical
Union. https://doi.org/10.1002/jgrd.50277'
chicago: 'Juszak, I., and Francesca Pellicciotti. “A Comparison of Parameterizations
of Incoming Longwave Radiation over Melting Glaciers: Model Robustness and Seasonal
Variability.” Journal of Geophysical Research: Atmospheres. American Geophysical
Union, 2013. https://doi.org/10.1002/jgrd.50277.'
ieee: 'I. Juszak and F. Pellicciotti, “A comparison of parameterizations of incoming
longwave radiation over melting glaciers: Model robustness and seasonal variability,”
Journal of Geophysical Research: Atmospheres, vol. 118, no. 8. American
Geophysical Union, pp. 3066–3084, 2013.'
ista: 'Juszak I, Pellicciotti F. 2013. A comparison of parameterizations of incoming
longwave radiation over melting glaciers: Model robustness and seasonal variability.
Journal of Geophysical Research: Atmospheres. 118(8), 3066–3084.'
mla: 'Juszak, I., and Francesca Pellicciotti. “A Comparison of Parameterizations
of Incoming Longwave Radiation over Melting Glaciers: Model Robustness and Seasonal
Variability.” Journal of Geophysical Research: Atmospheres, vol. 118, no.
8, American Geophysical Union, 2013, pp. 3066–84, doi:10.1002/jgrd.50277.'
short: 'I. Juszak, F. Pellicciotti, Journal of Geophysical Research: Atmospheres
118 (2013) 3066–3084.'
date_created: 2023-02-20T08:17:34Z
date_published: 2013-04-27T00:00:00Z
date_updated: 2023-02-21T10:10:46Z
day: '27'
doi: 10.1002/jgrd.50277
extern: '1'
intvolume: ' 118'
issue: '8'
keyword:
- Space and Planetary Science
- Earth and Planetary Sciences (miscellaneous)
- Atmospheric Science
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/jgrd.50277
month: '04'
oa: 1
oa_version: Published Version
page: 3066-3084
publication: 'Journal of Geophysical Research: Atmospheres'
publication_identifier:
issn:
- 2169-897X
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'A comparison of parameterizations of incoming longwave radiation over melting
glaciers: Model robustness and seasonal variability'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 118
year: '2013'
...
---
_id: '1304'
abstract:
- lang: eng
text: When confronted with a large-field stimulus rotating around the vertical body
axis, flies display a following behavior called "optomotor response."
As neural control elements, the large tangential horizontal system (HS) cells
of the lobula plate have been prime candidates for long. Here, we applied optogenetic
stimulation of HS cells to evaluate their behavioral role in Drosophila. To minimize
interference of the optical activation of channelrhodopsin-2 with the visual perception
of the flies, we used a bistable variant called ChR2-C128S. By applying pulses
of blue and yellow light, we first demonstrate electrophysiologically that lobula
plate tangential cells can be activated and deactivated repeatedly with no evident
change in depolarization strength over trials. We next show that selective optogenetic
activation of HS cells elicits robust yaw head movements and yaw turning responses
in fixed and tethered flying flies, respectively.
acknowledgement: 'This work was supported by the Max Planck Society. '
author:
- first_name: Väinö
full_name: Haikala, Väinö
last_name: Haikala
- first_name: Maximilian A
full_name: Maximilian Jösch
id: 2BD278E6-F248-11E8-B48F-1D18A9856A87
last_name: Jösch
orcid: 0000-0002-3937-1330
- first_name: Alexander
full_name: Borst, Alexander
last_name: Borst
- first_name: Alex
full_name: Mauss, Alex S
last_name: Mauss
citation:
ama: Haikala V, Jösch MA, Borst A, Mauss A. Optogenetic control of fly optomotor
responses. Journal of Neuroscience. 2013;33(34):13927-13934. doi:10.1523/JNEUROSCI.0340-13.2013
apa: Haikala, V., Jösch, M. A., Borst, A., & Mauss, A. (2013). Optogenetic control
of fly optomotor responses. Journal of Neuroscience. Society for Neuroscience.
https://doi.org/10.1523/JNEUROSCI.0340-13.2013
chicago: Haikala, Väinö, Maximilian A Jösch, Alexander Borst, and Alex Mauss. “Optogenetic
Control of Fly Optomotor Responses.” Journal of Neuroscience. Society for
Neuroscience, 2013. https://doi.org/10.1523/JNEUROSCI.0340-13.2013.
ieee: V. Haikala, M. A. Jösch, A. Borst, and A. Mauss, “Optogenetic control of fly
optomotor responses,” Journal of Neuroscience, vol. 33, no. 34. Society
for Neuroscience, pp. 13927–13934, 2013.
ista: Haikala V, Jösch MA, Borst A, Mauss A. 2013. Optogenetic control of fly optomotor
responses. Journal of Neuroscience. 33(34), 13927–13934.
mla: Haikala, Väinö, et al. “Optogenetic Control of Fly Optomotor Responses.” Journal
of Neuroscience, vol. 33, no. 34, Society for Neuroscience, 2013, pp. 13927–34,
doi:10.1523/JNEUROSCI.0340-13.2013.
short: V. Haikala, M.A. Jösch, A. Borst, A. Mauss, Journal of Neuroscience 33 (2013)
13927–13934.
date_created: 2018-12-11T11:51:16Z
date_published: 2013-01-01T00:00:00Z
date_updated: 2021-01-12T06:49:45Z
day: '01'
doi: 10.1523/JNEUROSCI.0340-13.2013
extern: 1
intvolume: ' 33'
issue: '34'
month: '01'
page: 13927 - 13934
publication: Journal of Neuroscience
publication_status: published
publisher: Society for Neuroscience
publist_id: '5967'
quality_controlled: 0
status: public
title: Optogenetic control of fly optomotor responses
type: journal_article
volume: 33
year: '2013'
...
---
_id: '1305'
abstract:
- lang: eng
text: In the fly Drosophila melanogaster, photoreceptor input to motion vision is
split into two parallel pathways as represented by first-order interneurons L1
and L2 (Rister et al., 2007; Joesch et al., 2010). However, how these pathways
are functionally specialized remains controversial. One study (Eichner et al.,
2011) proposed that the L1-pathway evaluates only sequences of brightness increments
(ON-ON), while the L2-pathway processes exclusively brightness decrements (OFF-OFF).
Another study (Clark et al., 2011) proposed that each of the two pathways evaluates
both ON-ON and OFF-OFF sequences. To decide between these alternatives, we recorded
from motionsensitive neurons in flies in which the output from either L1 or L2
was genetically blocked. We found that blocking L1 abolishes ON-ON responses but
leaves OFF-OFF responses intact. The opposite was true, when the output from L2
was blocked. We conclude that the L1 and L2 pathways are functionally specialized
to detect ON-ON and OFF-OFF sequences, respectively.
acknowledgement: This work was supported by the Max-Planck-Society and the SFB 870
of the Deutsche Forschungsgemeinschaft.
author:
- first_name: Maximilian A
full_name: Maximilian Jösch
id: 2BD278E6-F248-11E8-B48F-1D18A9856A87
last_name: Jösch
orcid: 0000-0002-3937-1330
- first_name: Franz
full_name: Weber, Franz
last_name: Weber
- first_name: Hubert
full_name: Eichner, Hubert
last_name: Eichner
- first_name: Alexander
full_name: Borst, Alexander
last_name: Borst
citation:
ama: Jösch MA, Weber F, Eichner H, Borst A. Functional specialization of parallel
motion detection circuits in the fly. Journal of Neuroscience. 2013;33(3):902-905.
doi:10.1523/JNEUROSCI.3374-12.2013
apa: Jösch, M. A., Weber, F., Eichner, H., & Borst, A. (2013). Functional specialization
of parallel motion detection circuits in the fly. Journal of Neuroscience.
Society for Neuroscience. https://doi.org/10.1523/JNEUROSCI.3374-12.2013
chicago: Jösch, Maximilian A, Franz Weber, Hubert Eichner, and Alexander Borst.
“Functional Specialization of Parallel Motion Detection Circuits in the Fly.”
Journal of Neuroscience. Society for Neuroscience, 2013. https://doi.org/10.1523/JNEUROSCI.3374-12.2013.
ieee: M. A. Jösch, F. Weber, H. Eichner, and A. Borst, “Functional specialization
of parallel motion detection circuits in the fly,” Journal of Neuroscience,
vol. 33, no. 3. Society for Neuroscience, pp. 902–905, 2013.
ista: Jösch MA, Weber F, Eichner H, Borst A. 2013. Functional specialization of
parallel motion detection circuits in the fly. Journal of Neuroscience. 33(3),
902–905.
mla: Jösch, Maximilian A., et al. “Functional Specialization of Parallel Motion
Detection Circuits in the Fly.” Journal of Neuroscience, vol. 33, no. 3,
Society for Neuroscience, 2013, pp. 902–05, doi:10.1523/JNEUROSCI.3374-12.2013.
short: M.A. Jösch, F. Weber, H. Eichner, A. Borst, Journal of Neuroscience 33 (2013)
902–905.
date_created: 2018-12-11T11:51:16Z
date_published: 2013-01-16T00:00:00Z
date_updated: 2021-01-12T06:49:45Z
day: '16'
doi: 10.1523/JNEUROSCI.3374-12.2013
extern: 1
intvolume: ' 33'
issue: '3'
month: '01'
page: 902 - 905
publication: Journal of Neuroscience
publication_status: published
publisher: Society for Neuroscience
publist_id: '5968'
quality_controlled: 0
status: public
title: Functional specialization of parallel motion detection circuits in the fly
type: journal_article
volume: 33
year: '2013'
...
---
_id: '970'
abstract:
- lang: eng
text: 'Recently a new high-mobility Dirac material, trilayer graphene, was realized
experimentally. The band structure of ABA-stacked trilayer graphene consists of
a monolayer-like and a bilayer-like pair of bands. Here we study electronic properties
of ABA-stacked trilayer graphene biased by a perpendicular electric field. We
find that the combination of the bias and trigonal warping gives rise to a set
of new Dirac points: In each valley, seven species of Dirac fermions with small
masses of order of a few meV emerge. The positions and masses of the emergent
Dirac fermions are tunable by bias, and one group of Dirac fermions becomes massless
at a certain bias value. Therefore, in contrast to bilayer graphene, the conductivity
at the neutrality point is expected to show nonmonotonic behavior, becoming of
the order of a few e2/h when some Dirac masses vanish. Further, we analyze the
evolution of the Landau level spectrum as a function of bias. The emergence of
new Dirac points in the band structure translates into new threefold-degenerate
groups of Landau levels. This leads to an anomalous quantum Hall effect, in which
some quantum Hall steps have a height of 3e2/h. At an intermediate bias, the degeneracies
of all Landau levels get lifted, and in this regime all quantum Hall plateaus
are spaced by e2/h. Finally, we show that the pattern of Landau level crossings
is very sensitive to certain band structure parameters, and can therefore provide
a useful tool for determining their precise values.'
acknowledgement: We thank Pablo Jarillo-Herrero, Leonardo Campos, and Thiti Taychatanapat
for attracting our attention to the problem of biased trilayer graphene, and for
many helpful discussions.
author:
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Dmitry
full_name: Abanin, Dmitry A
last_name: Abanin
citation:
ama: Serbyn M, Abanin D. New Dirac points and multiple Landau level crossings in
biased trilayer graphene. Physical Review B - Condensed Matter and Materials
Physics. 2013;87(11). doi:10.1103/PhysRevB.87.115422
apa: Serbyn, M., & Abanin, D. (2013). New Dirac points and multiple Landau level
crossings in biased trilayer graphene. Physical Review B - Condensed Matter
and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.87.115422
chicago: Serbyn, Maksym, and Dmitry Abanin. “New Dirac Points and Multiple Landau
Level Crossings in Biased Trilayer Graphene.” Physical Review B - Condensed
Matter and Materials Physics. American Physical Society, 2013. https://doi.org/10.1103/PhysRevB.87.115422.
ieee: M. Serbyn and D. Abanin, “New Dirac points and multiple Landau level crossings
in biased trilayer graphene,” Physical Review B - Condensed Matter and Materials
Physics, vol. 87, no. 11. American Physical Society, 2013.
ista: Serbyn M, Abanin D. 2013. New Dirac points and multiple Landau level crossings
in biased trilayer graphene. Physical Review B - Condensed Matter and Materials
Physics. 87(11).
mla: Serbyn, Maksym, and Dmitry Abanin. “New Dirac Points and Multiple Landau Level
Crossings in Biased Trilayer Graphene.” Physical Review B - Condensed Matter
and Materials Physics, vol. 87, no. 11, American Physical Society, 2013, doi:10.1103/PhysRevB.87.115422.
short: M. Serbyn, D. Abanin, Physical Review B - Condensed Matter and Materials
Physics 87 (2013).
date_created: 2018-12-11T11:49:28Z
date_published: 2013-03-18T00:00:00Z
date_updated: 2021-01-12T08:22:20Z
day: '18'
doi: 10.1103/PhysRevB.87.115422
extern: 1
intvolume: ' 87'
issue: '11'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1212.6251
month: '03'
oa: 1
publication: Physical Review B - Condensed Matter and Materials Physics
publication_status: published
publisher: American Physical Society
publist_id: '6428'
quality_controlled: 0
status: public
title: New Dirac points and multiple Landau level crossings in biased trilayer graphene
type: journal_article
volume: 87
year: '2013'
...
---
_id: '971'
abstract:
- lang: eng
text: We study the stability of the normal state in a mesoscopic NSN junction biased
by a constant voltage V with respect to the formation of the superconducting order.
Using the linearized time-dependent Ginzburg-Landau equation, we obtain the temperature
dependence of the instability line, V inst(T), where nucleation of superconductivity
takes place. For sufficiently low biases, a stationary symmetric superconducting
state emerges below the instability line. For higher biases, the normal phase
is destroyed by the formation of a nonstationary bimodal state with two superconducting
nuclei localized near the opposite terminals. The low-temperature and large-voltage
behavior of the instability line is highly sensitive to the details of the inelastic
relaxation mechanism in the wire. Therefore, experimental studies of Vinst(T)
in NSN junctions may be used as an effective tool to access the parameters of
the inelastic relaxation in the normal state.
acknowledgement: We are grateful to M. V. Feigel'man, A. Kamenev, T. M. Klapwijk,
J. P. Pekola, V. V. Ryazanov, J. C. W. Song, and D. Y. Vodolazov for discussions.
author:
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Mikhail
full_name: Skvortsov, Mikhail A
last_name: Skvortsov
citation:
ama: Serbyn M, Skvortsov M. Onset of superconductivity in a voltage-biased normal-superconducting-normal
microbridge. Physical Review B - Condensed Matter and Materials Physics.
2013;87(2). doi:10.1103/PhysRevB.87.020501
apa: Serbyn, M., & Skvortsov, M. (2013). Onset of superconductivity in a voltage-biased
normal-superconducting-normal microbridge. Physical Review B - Condensed Matter
and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.87.020501
chicago: Serbyn, Maksym, and Mikhail Skvortsov. “Onset of Superconductivity in a
Voltage-Biased Normal-Superconducting-Normal Microbridge.” Physical Review
B - Condensed Matter and Materials Physics. American Physical Society, 2013.
https://doi.org/10.1103/PhysRevB.87.020501.
ieee: M. Serbyn and M. Skvortsov, “Onset of superconductivity in a voltage-biased
normal-superconducting-normal microbridge,” Physical Review B - Condensed Matter
and Materials Physics, vol. 87, no. 2. American Physical Society, 2013.
ista: Serbyn M, Skvortsov M. 2013. Onset of superconductivity in a voltage-biased
normal-superconducting-normal microbridge. Physical Review B - Condensed Matter
and Materials Physics. 87(2).
mla: Serbyn, Maksym, and Mikhail Skvortsov. “Onset of Superconductivity in a Voltage-Biased
Normal-Superconducting-Normal Microbridge.” Physical Review B - Condensed Matter
and Materials Physics, vol. 87, no. 2, American Physical Society, 2013, doi:10.1103/PhysRevB.87.020501.
short: M. Serbyn, M. Skvortsov, Physical Review B - Condensed Matter and Materials
Physics 87 (2013).
date_created: 2018-12-11T11:49:28Z
date_published: 2013-01-02T00:00:00Z
date_updated: 2021-01-12T08:22:20Z
day: '02'
doi: 10.1103/PhysRevB.87.020501
extern: 1
intvolume: ' 87'
issue: '2'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1208.6004
month: '01'
oa: 1
publication: Physical Review B - Condensed Matter and Materials Physics
publication_status: published
publisher: American Physical Society
publist_id: '6429'
quality_controlled: 0
status: public
title: Onset of superconductivity in a voltage-biased normal-superconducting-normal
microbridge
type: journal_article
volume: 87
year: '2013'
...
---
_id: '972'
abstract:
- lang: eng
text: In topological crystalline insulators (TCIs), topology and crystal symmetry
intertwine to create surface states with distinct characteristics. The breaking
of crystal symmetry in TCIs is predicted to impart mass to the massless Dirac
fermions. Here, we report high-resolution scanning tunneling microscopy studies
of a TCI, Pb1-xSnxSe that reveal the coexistence of zero-mass Dirac fermions protected
by crystal symmetry with massive Dirac fermions consistent with crystal symmetry
breaking. In addition, we show two distinct regimes of the Fermi surface topology
separated by a Van-Hove singularity at the Lifshitz transition point. Our work
paves the way for engineering the Dirac band gap and realizing interaction-driven
topological quantum phenomena in TCIs.
arxiv: 1
author:
- first_name: Yoshinori
full_name: Okada, Yoshinori
last_name: Okada
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Hsin
full_name: Lin, Hsin
last_name: Lin
- first_name: Daniel
full_name: Walkup, Daniel
last_name: Walkup
- first_name: Wenwen
full_name: Zhou, Wenwen
last_name: Zhou
- first_name: Chetan
full_name: Dhital, Chetan
last_name: Dhital
- first_name: Madhab
full_name: Neupane, Madhab
last_name: Neupane
- first_name: Suyang
full_name: Xu, Suyang
last_name: Xu
- first_name: Yungjui
full_name: Wang, Yungjui
last_name: Wang
- first_name: Raman
full_name: Sankar, Raman
last_name: Sankar
- first_name: Fangcheng
full_name: Chou, Fangcheng
last_name: Chou
- first_name: Arun
full_name: Bansil, Arun
last_name: Bansil
- first_name: Md
full_name: Hasan, Md
last_name: Hasan
- first_name: Stephen
full_name: Wilson, Stephen
last_name: Wilson
- first_name: Liang
full_name: Fu, Liang
last_name: Fu
- first_name: Vidya
full_name: Madhavan, Vidya
last_name: Madhavan
citation:
ama: Okada Y, Serbyn M, Lin H, et al. Observation of dirac node formation and mass
acquisition in a topological crystalline insulator. Science. 2013;341(6153):1496-1499.
doi:10.1126/science.1239451
apa: Okada, Y., Serbyn, M., Lin, H., Walkup, D., Zhou, W., Dhital, C., … Madhavan,
V. (2013). Observation of dirac node formation and mass acquisition in a topological
crystalline insulator. Science. American Association for the Advancement
of Science. https://doi.org/10.1126/science.1239451
chicago: Okada, Yoshinori, Maksym Serbyn, Hsin Lin, Daniel Walkup, Wenwen Zhou,
Chetan Dhital, Madhab Neupane, et al. “Observation of Dirac Node Formation and
Mass Acquisition in a Topological Crystalline Insulator.” Science. American
Association for the Advancement of Science, 2013. https://doi.org/10.1126/science.1239451.
ieee: Y. Okada et al., “Observation of dirac node formation and mass acquisition
in a topological crystalline insulator,” Science, vol. 341, no. 6153. American
Association for the Advancement of Science, pp. 1496–1499, 2013.
ista: Okada Y, Serbyn M, Lin H, Walkup D, Zhou W, Dhital C, Neupane M, Xu S, Wang
Y, Sankar R, Chou F, Bansil A, Hasan M, Wilson S, Fu L, Madhavan V. 2013. Observation
of dirac node formation and mass acquisition in a topological crystalline insulator.
Science. 341(6153), 1496–1499.
mla: Okada, Yoshinori, et al. “Observation of Dirac Node Formation and Mass Acquisition
in a Topological Crystalline Insulator.” Science, vol. 341, no. 6153, American
Association for the Advancement of Science, 2013, pp. 1496–99, doi:10.1126/science.1239451.
short: Y. Okada, M. Serbyn, H. Lin, D. Walkup, W. Zhou, C. Dhital, M. Neupane, S.
Xu, Y. Wang, R. Sankar, F. Chou, A. Bansil, M. Hasan, S. Wilson, L. Fu, V. Madhavan,
Science 341 (2013) 1496–1499.
date_created: 2018-12-11T11:49:29Z
date_published: 2013-01-01T00:00:00Z
date_updated: 2021-01-12T08:22:20Z
day: '01'
doi: 10.1126/science.1239451
extern: '1'
external_id:
arxiv:
- '1305.2823'
intvolume: ' 341'
issue: '6153'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1305.2823
month: '01'
oa: 1
oa_version: Preprint
page: 1496 - 1499
publication: Science
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '6430'
quality_controlled: '1'
status: public
title: Observation of dirac node formation and mass acquisition in a topological crystalline
insulator
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 341
year: '2013'
...
---
_id: '973'
abstract:
- lang: eng
text: We construct a complete set of local integrals of motion that characterize
the many-body localized (MBL) phase. Our approach relies on the assumption that
local perturbations act locally on the eigenstates in the MBL phase, which is
supported by numerical simulations of the random-field XXZ spin chain. We describe
the structure of the eigenstates in the MBL phase and discuss the implications
of local conservation laws for its nonequilibrium quantum dynamics. We argue that
the many-body localization can be used to protect coherence in the system by suppressing
relaxation between eigenstates with different local integrals of motion.
acknowledgement: We thank J. Moore for useful discussions. Research at Perimeter Institute
is supported by the Government of Canada through Industry Canada and by the Province
of Ontario through the Ministry of Economic Development & Innovation. Z. P. was
supported by DOE Grant No. DE-SC0002140. M. S. was supported by the National Science
Foundation under Grant No. DMR-1104498. The simulations presented in this article
were performed on computational resources supported by the High Performance Computing
Center (PICSciE) at Princeton University.
author:
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Zlatko
full_name: Papić, Zlatko
last_name: Papić
- first_name: Dmitry
full_name: Abanin, Dmitry A
last_name: Abanin
citation:
ama: Serbyn M, Papić Z, Abanin D. Local conservation laws and the structure of the
many body localized states. Physical Review Letters. 2013;111(12). doi:10.1103/PhysRevLett.111.127201
apa: Serbyn, M., Papić, Z., & Abanin, D. (2013). Local conservation laws and
the structure of the many body localized states. Physical Review Letters.
American Physical Society. https://doi.org/10.1103/PhysRevLett.111.127201
chicago: Serbyn, Maksym, Zlatko Papić, and Dmitry Abanin. “Local Conservation Laws
and the Structure of the Many Body Localized States.” Physical Review Letters.
American Physical Society, 2013. https://doi.org/10.1103/PhysRevLett.111.127201.
ieee: M. Serbyn, Z. Papić, and D. Abanin, “Local conservation laws and the structure
of the many body localized states,” Physical Review Letters, vol. 111,
no. 12. American Physical Society, 2013.
ista: Serbyn M, Papić Z, Abanin D. 2013. Local conservation laws and the structure
of the many body localized states. Physical Review Letters. 111(12).
mla: Serbyn, Maksym, et al. “Local Conservation Laws and the Structure of the Many
Body Localized States.” Physical Review Letters, vol. 111, no. 12, American
Physical Society, 2013, doi:10.1103/PhysRevLett.111.127201.
short: M. Serbyn, Z. Papić, D. Abanin, Physical Review Letters 111 (2013).
date_created: 2018-12-11T11:49:29Z
date_published: 2013-09-17T00:00:00Z
date_updated: 2021-01-12T08:22:21Z
day: '17'
doi: 10.1103/PhysRevLett.111.127201
extern: 1
intvolume: ' 111'
issue: '12'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1305.5554
month: '09'
oa: 1
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '6424'
quality_controlled: 0
status: public
title: Local conservation laws and the structure of the many body localized states
type: journal_article
volume: 111
year: '2013'
...
---
_id: '974'
abstract:
- lang: eng
text: We propose a possible realization of the overscreened Kondo impurity problem
by a magnetic s=1/2 impurity embedded in a two-dimensional S=1 U(1) spin liquid
with a Fermi surface. This problem contains an interesting interplay between non-Fermi-liquid
behavior induced by a U(1) gauge field coupled to fermions and a non-Fermi-liquid
fixed point in the overscreened Kondo problem. Using a large-N expansion together
with an expansion in the dynamical exponent of the gauge field, we find that the
coupling to the gauge field leads to weak but observable changes in the physical
properties of the system at the overscreened Kondo fixed point. We discuss the
extrapolation of this result to a physical case and argue that the realization
of overscreened Kondo physics could lead to observations of effects due to gauge
fields.
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: Todadri
full_name: Senthil, Todadri
last_name: Senthil
- first_name: Patrick
full_name: Lee, Patrick
last_name: Lee
citation:
ama: Serbyn M, Senthil T, Lee P. Overscreened Kondo fixed point in S=1 spin liquid.
Physical Review B - Condensed Matter and Materials Physics. 2013;88(2).
doi:10.1103/PhysRevB.88.024419
apa: Serbyn, M., Senthil, T., & Lee, P. (2013). Overscreened Kondo fixed point
in S=1 spin liquid. Physical Review B - Condensed Matter and Materials Physics.
American Physical Society. https://doi.org/10.1103/PhysRevB.88.024419
chicago: Serbyn, Maksym, Todadri Senthil, and Patrick Lee. “Overscreened Kondo Fixed
Point in S=1 Spin Liquid.” Physical Review B - Condensed Matter and Materials
Physics. American Physical Society, 2013. https://doi.org/10.1103/PhysRevB.88.024419.
ieee: M. Serbyn, T. Senthil, and P. Lee, “Overscreened Kondo fixed point in S=1
spin liquid,” Physical Review B - Condensed Matter and Materials Physics,
vol. 88, no. 2. American Physical Society, 2013.
ista: Serbyn M, Senthil T, Lee P. 2013. Overscreened Kondo fixed point in S=1 spin
liquid. Physical Review B - Condensed Matter and Materials Physics. 88(2).
mla: Serbyn, Maksym, et al. “Overscreened Kondo Fixed Point in S=1 Spin Liquid.”
Physical Review B - Condensed Matter and Materials Physics, vol. 88, no.
2, American Physical Society, 2013, doi:10.1103/PhysRevB.88.024419.
short: M. Serbyn, T. Senthil, P. Lee, Physical Review B - Condensed Matter and Materials
Physics 88 (2013).
date_created: 2018-12-11T11:49:29Z
date_published: 2013-07-19T00:00:00Z
date_updated: 2021-01-12T08:22:21Z
day: '19'
doi: 10.1103/PhysRevB.88.024419
extern: '1'
external_id:
arxiv:
- '1212.5179'
intvolume: ' 88'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1212.5179
month: '07'
oa: 1
oa_version: Preprint
publication: Physical Review B - Condensed Matter and Materials Physics
publication_status: published
publisher: American Physical Society
publist_id: '6425'
quality_controlled: '1'
status: public
title: Overscreened Kondo fixed point in S=1 spin liquid
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 88
year: '2013'
...
---
_id: '9749'
abstract:
- lang: eng
text: Cooperative behavior, where one individual incurs a cost to help another,
is a wide spread phenomenon. Here we study direct reciprocity in the context of
the alternating Prisoner's Dilemma. We consider all strategies that can be implemented
by one and two-state automata. We calculate the payoff matrix of all pairwise
encounters in the presence of noise. We explore deterministic selection dynamics
with and without mutation. Using different error rates and payoff values, we observe
convergence to a small number of distinct equilibria. Two of them are uncooperative
strict Nash equilibria representing always-defect (ALLD) and Grim. The third equilibrium
is mixed and represents a cooperative alliance of several strategies, dominated
by a strategy which we call Forgiver. Forgiver cooperates whenever the opponent
has cooperated; it defects once when the opponent has defected, but subsequently
Forgiver attempts to re-establish cooperation even if the opponent has defected
again. Forgiver is not an evolutionarily stable strategy, but the alliance, which
it rules, is asymptotically stable. For a wide range of parameter values the most
commonly observed outcome is convergence to the mixed equilibrium, dominated by
Forgiver. Our results show that although forgiving might incur a short-term loss
it can lead to a long-term gain. Forgiveness facilitates stable cooperation in
the presence of exploitation and noise.
article_processing_charge: No
author:
- first_name: Benjamin
full_name: Zagorsky, Benjamin
last_name: Zagorsky
- first_name: Johannes
full_name: Reiter, Johannes
id: 4A918E98-F248-11E8-B48F-1D18A9856A87
last_name: Reiter
orcid: 0000-0002-0170-7353
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Martin
full_name: Nowak, Martin
last_name: Nowak
citation:
ama: Zagorsky B, Reiter J, Chatterjee K, Nowak M. Forgiver triumphs in alternating
prisoner’s dilemma . 2013. doi:10.1371/journal.pone.0080814.s001
apa: Zagorsky, B., Reiter, J., Chatterjee, K., & Nowak, M. (2013). Forgiver
triumphs in alternating prisoner’s dilemma . Public Library of Science. https://doi.org/10.1371/journal.pone.0080814.s001
chicago: Zagorsky, Benjamin, Johannes Reiter, Krishnendu Chatterjee, and Martin
Nowak. “Forgiver Triumphs in Alternating Prisoner’s Dilemma .” Public Library
of Science, 2013. https://doi.org/10.1371/journal.pone.0080814.s001.
ieee: B. Zagorsky, J. Reiter, K. Chatterjee, and M. Nowak, “Forgiver triumphs in
alternating prisoner’s dilemma .” Public Library of Science, 2013.
ista: Zagorsky B, Reiter J, Chatterjee K, Nowak M. 2013. Forgiver triumphs in alternating
prisoner’s dilemma , Public Library of Science, 10.1371/journal.pone.0080814.s001.
mla: Zagorsky, Benjamin, et al. Forgiver Triumphs in Alternating Prisoner’s Dilemma
. Public Library of Science, 2013, doi:10.1371/journal.pone.0080814.s001.
short: B. Zagorsky, J. Reiter, K. Chatterjee, M. Nowak, (2013).
date_created: 2021-07-28T15:45:07Z
date_published: 2013-12-12T00:00:00Z
date_updated: 2023-02-23T10:34:39Z
day: '12'
department:
- _id: KrCh
doi: 10.1371/journal.pone.0080814.s001
month: '12'
oa_version: Published Version
publisher: Public Library of Science
related_material:
record:
- id: '2247'
relation: used_in_publication
status: public
status: public
title: 'Forgiver triumphs in alternating prisoner''s dilemma '
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2013'
...