---
_id: '430'
abstract:
- lang: eng
text: In this issue of GENETICS, a new method for detecting natural selection on
polygenic traits is developed and applied to sev- eral human examples ( Racimo
et al. 2018 ). By de fi nition, many loci contribute to variation in polygenic
traits, and a challenge for evolutionary ge neticists has been that these traits
can evolve by small, nearly undetectable shifts in allele frequencies across each
of many, typically unknown, loci. Recently, a helpful remedy has arisen. Genome-wide
associ- ation studies (GWAS) have been illuminating sets of loci that can be interrogated
jointly for c hanges in allele frequencies. By aggregating small signal s of change
across many such loci, directional natural selection is now in principle detect-
able using genetic data, even for highly polygenic traits. This is an exciting
arena of progress – with these methods, tests can be made for selection associated
with traits, and we can now study selection in what may be its most prevalent
mode. The continuing fast pace of GWAS publications suggest there will be many
more polygenic tests of selection in the near future, as every new GWAS is an
opportunity for an accom- panying test of polygenic selection. However, it is
important to be aware of complications th at arise in interpretation, especially
given that these studies may easily be misinter- preted both in and outside the
evolutionary genetics commu- nity. Here, we provide context for understanding
polygenic tests and urge caution regarding how these results are inter- preted
and reported upon more broadly.
article_processing_charge: No
author:
- first_name: John
full_name: Novembre, John
last_name: Novembre
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: Novembre J, Barton NH. Tread lightly interpreting polygenic tests of selection.
Genetics. 2018;208(4):1351-1355. doi:10.1534/genetics.118.300786
apa: Novembre, J., & Barton, N. H. (2018). Tread lightly interpreting polygenic
tests of selection. Genetics. Genetics Society of America. https://doi.org/10.1534/genetics.118.300786
chicago: Novembre, John, and Nicholas H Barton. “Tread Lightly Interpreting Polygenic
Tests of Selection.” Genetics. Genetics Society of America, 2018. https://doi.org/10.1534/genetics.118.300786.
ieee: J. Novembre and N. H. Barton, “Tread lightly interpreting polygenic tests
of selection,” Genetics, vol. 208, no. 4. Genetics Society of America,
pp. 1351–1355, 2018.
ista: Novembre J, Barton NH. 2018. Tread lightly interpreting polygenic tests of
selection. Genetics. 208(4), 1351–1355.
mla: Novembre, John, and Nicholas H. Barton. “Tread Lightly Interpreting Polygenic
Tests of Selection.” Genetics, vol. 208, no. 4, Genetics Society of America,
2018, pp. 1351–55, doi:10.1534/genetics.118.300786.
short: J. Novembre, N.H. Barton, Genetics 208 (2018) 1351–1355.
date_created: 2018-12-11T11:46:26Z
date_published: 2018-04-01T00:00:00Z
date_updated: 2023-09-19T10:17:30Z
day: '01'
ddc:
- '576'
department:
- _id: NiBa
doi: 10.1534/genetics.118.300786
external_id:
isi:
- '000429094400005'
file:
- access_level: open_access
checksum: 3d838dc285df394376555b794b6a5ad1
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:12:40Z
date_updated: 2020-07-14T12:46:26Z
file_id: '4958'
file_name: IST-2018-1012-v1+1_2018_Barton_Tread.pdf
file_size: 500129
relation: main_file
file_date_updated: 2020-07-14T12:46:26Z
has_accepted_license: '1'
intvolume: ' 208'
isi: 1
issue: '4'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: 1351 - 1355
publication: Genetics
publication_status: published
publisher: Genetics Society of America
publist_id: '7393'
pubrep_id: '1012'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Tread lightly interpreting polygenic tests of selection
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 208
year: '2018'
...
---
_id: '199'
abstract:
- lang: eng
text: Sex-biased genes are central to the study of sexual selection, sexual antagonism,
and sex chromosome evolution. We describe a comprehensive de novo assembled transcriptome
in the common frog Rana temporaria based on five developmental stages and three
adult tissues from both sexes, obtained from a population with karyotypically
homomorphic but genetically differentiated sex chromosomes. This allows the study
of sex-biased gene expression throughout development, and its effect on the rate
of gene evolution while accounting for pleiotropic expression, which is known
to negatively correlate with the evolutionary rate. Overall, sex-biased genes
had little overlap among developmental stages and adult tissues. Late developmental
stages and gonad tissues had the highest numbers of stage-or tissue-specific genes.
We find that pleiotropic gene expression is a better predictor than sex bias for
the evolutionary rate of genes, though it often interacts with sex bias. Although
genetically differentiated, the sex chromosomes were not enriched in sex-biased
genes, possibly due to a very recent arrest of XY recombination. These results
extend our understanding of the developmental dynamics, tissue specificity, and
genomic localization of sex-biased genes.
article_number: '294'
article_processing_charge: No
author:
- first_name: Wen
full_name: Ma, Wen
last_name: Ma
- first_name: Paris
full_name: Veltsos, Paris
last_name: Veltsos
- first_name: Melissa A
full_name: Toups, Melissa A
id: 4E099E4E-F248-11E8-B48F-1D18A9856A87
last_name: Toups
orcid: 0000-0002-9752-7380
- first_name: Nicolas
full_name: Rodrigues, Nicolas
last_name: Rodrigues
- first_name: Roberto
full_name: Sermier, Roberto
last_name: Sermier
- first_name: Daniel
full_name: Jeffries, Daniel
last_name: Jeffries
- first_name: Nicolas
full_name: Perrin, Nicolas
last_name: Perrin
citation:
ama: Ma W, Veltsos P, Toups MA, et al. Tissue specificity and dynamics of sex biased
gene expression in a common frog population with differentiated, yet homomorphic,
sex chromosomes. Genes. 2018;9(6). doi:10.3390/genes9060294
apa: Ma, W., Veltsos, P., Toups, M. A., Rodrigues, N., Sermier, R., Jeffries, D.,
& Perrin, N. (2018). Tissue specificity and dynamics of sex biased gene expression
in a common frog population with differentiated, yet homomorphic, sex chromosomes.
Genes. MDPI AG. https://doi.org/10.3390/genes9060294
chicago: Ma, Wen, Paris Veltsos, Melissa A Toups, Nicolas Rodrigues, Roberto Sermier,
Daniel Jeffries, and Nicolas Perrin. “Tissue Specificity and Dynamics of Sex Biased
Gene Expression in a Common Frog Population with Differentiated, yet Homomorphic,
Sex Chromosomes.” Genes. MDPI AG, 2018. https://doi.org/10.3390/genes9060294.
ieee: W. Ma et al., “Tissue specificity and dynamics of sex biased gene expression
in a common frog population with differentiated, yet homomorphic, sex chromosomes,”
Genes, vol. 9, no. 6. MDPI AG, 2018.
ista: Ma W, Veltsos P, Toups MA, Rodrigues N, Sermier R, Jeffries D, Perrin N. 2018.
Tissue specificity and dynamics of sex biased gene expression in a common frog
population with differentiated, yet homomorphic, sex chromosomes. Genes. 9(6),
294.
mla: Ma, Wen, et al. “Tissue Specificity and Dynamics of Sex Biased Gene Expression
in a Common Frog Population with Differentiated, yet Homomorphic, Sex Chromosomes.”
Genes, vol. 9, no. 6, 294, MDPI AG, 2018, doi:10.3390/genes9060294.
short: W. Ma, P. Veltsos, M.A. Toups, N. Rodrigues, R. Sermier, D. Jeffries, N.
Perrin, Genes 9 (2018).
date_created: 2018-12-11T11:45:09Z
date_published: 2018-06-12T00:00:00Z
date_updated: 2023-09-19T10:15:31Z
day: '12'
ddc:
- '570'
department:
- _id: BeVi
doi: 10.3390/genes9060294
external_id:
isi:
- '000436494200026'
file:
- access_level: open_access
checksum: 423069beb1cd3cdd25bf3f464b38f1d7
content_type: application/pdf
creator: dernst
date_created: 2019-02-01T07:52:28Z
date_updated: 2020-07-14T12:45:22Z
file_id: '5905'
file_name: 2018_Genes_Ma.pdf
file_size: 3985796
relation: main_file
file_date_updated: 2020-07-14T12:45:22Z
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: Genes
publication_status: published
publisher: MDPI AG
publist_id: '7714'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Tissue specificity and dynamics of sex biased gene expression in a common frog
population with differentiated, yet homomorphic, sex chromosomes
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 9
year: '2018'
...
---
_id: '543'
abstract:
- lang: eng
text: A central goal in theoretical neuroscience is to predict the response properties
of sensory neurons from first principles. To this end, “efficient coding” posits
that sensory neurons encode maximal information about their inputs given internal
constraints. There exist, however, many variants of efficient coding (e.g., redundancy
reduction, different formulations of predictive coding, robust coding, sparse
coding, etc.), differing in their regimes of applicability, in the relevance of
signals to be encoded, and in the choice of constraints. It is unclear how these
types of efficient coding relate or what is expected when different coding objectives
are combined. Here we present a unified framework that encompasses previously
proposed efficient coding models and extends to unique regimes. We show that optimizing
neural responses to encode predictive information can lead them to either correlate
or decorrelate their inputs, depending on the stimulus statistics; in contrast,
at low noise, efficiently encoding the past always predicts decorrelation. Later,
we investigate coding of naturalistic movies and show that qualitatively different
types of visual motion tuning and levels of response sparsity are predicted, depending
on whether the objective is to recover the past or predict the future. Our approach
promises a way to explain the observed diversity of sensory neural responses,
as due to multiple functional goals and constraints fulfilled by different cell
types and/or circuits.
article_processing_charge: No
author:
- first_name: Matthew J
full_name: Chalk, Matthew J
id: 2BAAC544-F248-11E8-B48F-1D18A9856A87
last_name: Chalk
orcid: 0000-0001-7782-4436
- first_name: Olivier
full_name: Marre, Olivier
last_name: Marre
- first_name: Gasper
full_name: Tkacik, Gasper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkacik
orcid: 0000-0002-6699-1455
citation:
ama: Chalk MJ, Marre O, Tkačik G. Toward a unified theory of efficient, predictive,
and sparse coding. PNAS. 2018;115(1):186-191. doi:10.1073/pnas.1711114115
apa: Chalk, M. J., Marre, O., & Tkačik, G. (2018). Toward a unified theory of
efficient, predictive, and sparse coding. PNAS. National Academy of Sciences.
https://doi.org/10.1073/pnas.1711114115
chicago: Chalk, Matthew J, Olivier Marre, and Gašper Tkačik. “Toward a Unified Theory
of Efficient, Predictive, and Sparse Coding.” PNAS. National Academy of
Sciences, 2018. https://doi.org/10.1073/pnas.1711114115.
ieee: M. J. Chalk, O. Marre, and G. Tkačik, “Toward a unified theory of efficient,
predictive, and sparse coding,” PNAS, vol. 115, no. 1. National Academy
of Sciences, pp. 186–191, 2018.
ista: Chalk MJ, Marre O, Tkačik G. 2018. Toward a unified theory of efficient, predictive,
and sparse coding. PNAS. 115(1), 186–191.
mla: Chalk, Matthew J., et al. “Toward a Unified Theory of Efficient, Predictive,
and Sparse Coding.” PNAS, vol. 115, no. 1, National Academy of Sciences,
2018, pp. 186–91, doi:10.1073/pnas.1711114115.
short: M.J. Chalk, O. Marre, G. Tkačik, PNAS 115 (2018) 186–191.
date_created: 2018-12-11T11:47:04Z
date_published: 2018-01-02T00:00:00Z
date_updated: 2023-09-19T10:16:35Z
day: '02'
department:
- _id: GaTk
doi: 10.1073/pnas.1711114115
external_id:
isi:
- '000419128700049'
intvolume: ' 115'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: 'https://doi.org/10.1101/152660 '
month: '01'
oa: 1
oa_version: Submitted Version
page: 186 - 191
project:
- _id: 254D1A94-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 25651-N26
name: Sensitivity to higher-order statistics in natural scenes
publication: PNAS
publication_status: published
publisher: National Academy of Sciences
publist_id: '7273'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Toward a unified theory of efficient, predictive, and sparse coding
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 115
year: '2018'
...
---
_id: '421'
abstract:
- lang: eng
text: Cell shape is determined by a balance of intrinsic properties of the cell
as well as its mechanochemical environment. Inhomogeneous shape changes underlie
many morphogenetic events and involve spatial gradients in active cellular forces
induced by complex chemical signaling. Here, we introduce a mechanochemical model
based on the notion that cell shape changes may be induced by external diffusible
biomolecules that influence cellular contractility (or equivalently, adhesions)
in a concentration-dependent manner—and whose spatial profile in turn is affected
by cell shape. We map out theoretically the possible interplay between chemical
concentration and cellular structure. Besides providing a direct route to spatial
gradients in cell shape profiles in tissues, we show that the dependence on cell
shape helps create robust mechanochemical gradients.
article_processing_charge: No
author:
- first_name: Kinjal
full_name: Dasbiswas, Kinjal
last_name: Dasbiswas
- first_name: Claude-Edouard B
full_name: Hannezo, Claude-Edouard B
id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
last_name: Hannezo
orcid: 0000-0001-6005-1561
- first_name: Nir
full_name: Gov, Nir
last_name: Gov
citation:
ama: Dasbiswas K, Hannezo EB, Gov N. Theory of eppithelial cell shape transitions
induced by mechanoactive chemical gradients. Biophysical Journal. 2018;114(4):968-977.
doi:10.1016/j.bpj.2017.12.022
apa: Dasbiswas, K., Hannezo, E. B., & Gov, N. (2018). Theory of eppithelial
cell shape transitions induced by mechanoactive chemical gradients. Biophysical
Journal. Biophysical Society. https://doi.org/10.1016/j.bpj.2017.12.022
chicago: Dasbiswas, Kinjal, Edouard B Hannezo, and Nir Gov. “Theory of Eppithelial
Cell Shape Transitions Induced by Mechanoactive Chemical Gradients.” Biophysical
Journal. Biophysical Society, 2018. https://doi.org/10.1016/j.bpj.2017.12.022.
ieee: K. Dasbiswas, E. B. Hannezo, and N. Gov, “Theory of eppithelial cell shape
transitions induced by mechanoactive chemical gradients,” Biophysical Journal,
vol. 114, no. 4. Biophysical Society, pp. 968–977, 2018.
ista: Dasbiswas K, Hannezo EB, Gov N. 2018. Theory of eppithelial cell shape transitions
induced by mechanoactive chemical gradients. Biophysical Journal. 114(4), 968–977.
mla: Dasbiswas, Kinjal, et al. “Theory of Eppithelial Cell Shape Transitions Induced
by Mechanoactive Chemical Gradients.” Biophysical Journal, vol. 114, no.
4, Biophysical Society, 2018, pp. 968–77, doi:10.1016/j.bpj.2017.12.022.
short: K. Dasbiswas, E.B. Hannezo, N. Gov, Biophysical Journal 114 (2018) 968–977.
date_created: 2018-12-11T11:46:23Z
date_published: 2018-02-27T00:00:00Z
date_updated: 2023-09-19T10:13:55Z
day: '27'
department:
- _id: EdHa
doi: 10.1016/j.bpj.2017.12.022
external_id:
arxiv:
- '1709.01486'
isi:
- '000428016700021'
intvolume: ' 114'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1709.01486
month: '02'
oa: 1
oa_version: Submitted Version
page: 968 - 977
publication: Biophysical Journal
publication_status: published
publisher: Biophysical Society
publist_id: '7403'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Theory of eppithelial cell shape transitions induced by mechanoactive chemical
gradients
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 114
year: '2018'
...
---
_id: '63'
abstract:
- lang: eng
text: African cichlids display a remarkable assortment of jaw morphologies, pigmentation
patterns, and mating behaviors. In addition to this previously documented diversity,
recent studies have documented a rich diversity of sex chromosomes within these
fishes. Here we review the known sex-determination network within vertebrates,
and the extraordinary number of sex chromosomes systems segregating in African
cichlids. We also propose a model for understanding the unusual number of sex
chromosome systems within this clade.
acknowledgement: NSF DEB-1830753 and ISTPlus Fellowship
article_number: '480'
article_processing_charge: No
author:
- first_name: William J
full_name: Gammerdinger, William J
id: 3A7E01BC-F248-11E8-B48F-1D18A9856A87
last_name: Gammerdinger
orcid: 0000-0001-9638-1220
- first_name: Thomas
full_name: Kocher, Thomas
last_name: Kocher
citation:
ama: Gammerdinger WJ, Kocher T. Unusual diversity of sex chromosomes in African
cichlid fishes. Genes. 2018;9(10). doi:10.3390/genes9100480
apa: Gammerdinger, W. J., & Kocher, T. (2018). Unusual diversity of sex chromosomes
in African cichlid fishes. Genes. MDPI AG. https://doi.org/10.3390/genes9100480
chicago: Gammerdinger, William J, and Thomas Kocher. “Unusual Diversity of Sex Chromosomes
in African Cichlid Fishes.” Genes. MDPI AG, 2018. https://doi.org/10.3390/genes9100480.
ieee: W. J. Gammerdinger and T. Kocher, “Unusual diversity of sex chromosomes in
African cichlid fishes,” Genes, vol. 9, no. 10. MDPI AG, 2018.
ista: Gammerdinger WJ, Kocher T. 2018. Unusual diversity of sex chromosomes in African
cichlid fishes. Genes. 9(10), 480.
mla: Gammerdinger, William J., and Thomas Kocher. “Unusual Diversity of Sex Chromosomes
in African Cichlid Fishes.” Genes, vol. 9, no. 10, 480, MDPI AG, 2018,
doi:10.3390/genes9100480.
short: W.J. Gammerdinger, T. Kocher, Genes 9 (2018).
date_created: 2018-12-11T11:44:26Z
date_published: 2018-10-04T00:00:00Z
date_updated: 2023-09-19T10:37:03Z
day: '04'
ddc:
- '570'
department:
- _id: BeVi
doi: 10.3390/genes9100480
ec_funded: 1
external_id:
isi:
- '000448656700018'
file:
- access_level: open_access
checksum: bec527692e2c9b56919c0429634ff337
content_type: application/pdf
creator: dernst
date_created: 2018-12-18T09:54:46Z
date_updated: 2020-07-14T12:47:27Z
file_id: '5743'
file_name: 2018_Genes_Gammerdinger.pdf
file_size: 1415791
relation: main_file
file_date_updated: 2020-07-14T12:47:27Z
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
issue: '10'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Genes
publication_status: published
publisher: MDPI AG
publist_id: '7991'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Unusual diversity of sex chromosomes in African cichlid fishes
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 9
year: '2018'
...
---
_id: '296'
abstract:
- lang: eng
text: The thermodynamic description of many-particle systems rests on the assumption
of ergodicity, the ability of a system to explore all allowed configurations in
the phase space. Recent studies on many-body localization have revealed the existence
of systems that strongly violate ergodicity in the presence of quenched disorder.
Here, we demonstrate that ergodicity can be weakly broken by a different mechanism,
arising from the presence of special eigenstates in the many-body spectrum that
are reminiscent of quantum scars in chaotic non-interacting systems. In the single-particle
case, quantum scars correspond to wavefunctions that concentrate in the vicinity
of unstable periodic classical trajectories. We show that many-body scars appear
in the Fibonacci chain, a model with a constrained local Hilbert space that has
recently been experimentally realized in a Rydberg-atom quantum simulator. The
quantum scarred eigenstates are embedded throughout the otherwise thermalizing
many-body spectrum but lead to direct experimental signatures, as we show for
periodic recurrences that reproduce those observed in the experiment. Our results
suggest that scarred many-body bands give rise to a new universality class of
quantum dynamics, opening up opportunities for the creation of novel states with
long-lived coherence in systems that are now experimentally realizable.
acknowledgement: C.J.T., A.M. and Z.P. acknowledge support from EPSRC grants EP/P009409/1
and EP/M50807X/1, and Royal Society Research Grant RG160635. D.A. acknowledges support
from the Swiss National Science Foundation.
article_processing_charge: No
article_type: original
author:
- first_name: Christopher
full_name: Turner, Christopher
last_name: Turner
- first_name: Alexios
full_name: Michailidis, Alexios
id: 36EBAD38-F248-11E8-B48F-1D18A9856A87
last_name: Michailidis
orcid: 0000-0002-8443-1064
- first_name: Dmitry
full_name: Abanin, Dmitry
last_name: Abanin
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Zlatko
full_name: Papić, Zlatko
last_name: Papić
citation:
ama: Turner C, Michailidis A, Abanin D, Serbyn M, Papić Z. Weak ergodicity breaking
from quantum many-body scars. Nature Physics. 2018;14:745-749. doi:10.1038/s41567-018-0137-5
apa: Turner, C., Michailidis, A., Abanin, D., Serbyn, M., & Papić, Z. (2018).
Weak ergodicity breaking from quantum many-body scars. Nature Physics.
Nature Publishing Group. https://doi.org/10.1038/s41567-018-0137-5
chicago: Turner, Christopher, Alexios Michailidis, Dmitry Abanin, Maksym Serbyn,
and Zlatko Papić. “Weak Ergodicity Breaking from Quantum Many-Body Scars.” Nature
Physics. Nature Publishing Group, 2018. https://doi.org/10.1038/s41567-018-0137-5.
ieee: C. Turner, A. Michailidis, D. Abanin, M. Serbyn, and Z. Papić, “Weak ergodicity
breaking from quantum many-body scars,” Nature Physics, vol. 14. Nature
Publishing Group, pp. 745–749, 2018.
ista: Turner C, Michailidis A, Abanin D, Serbyn M, Papić Z. 2018. Weak ergodicity
breaking from quantum many-body scars. Nature Physics. 14, 745–749.
mla: Turner, Christopher, et al. “Weak Ergodicity Breaking from Quantum Many-Body
Scars.” Nature Physics, vol. 14, Nature Publishing Group, 2018, pp. 745–49,
doi:10.1038/s41567-018-0137-5.
short: C. Turner, A. Michailidis, D. Abanin, M. Serbyn, Z. Papić, Nature Physics
14 (2018) 745–749.
date_created: 2018-12-11T11:45:40Z
date_published: 2018-05-14T00:00:00Z
date_updated: 2023-09-19T10:37:55Z
day: '14'
department:
- _id: MaSe
doi: 10.1038/s41567-018-0137-5
external_id:
isi:
- '000438253600028'
intvolume: ' 14'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://eprints.whiterose.ac.uk/130860/
month: '05'
oa: 1
oa_version: Submitted Version
page: 745 - 749
publication: Nature Physics
publication_status: published
publisher: Nature Publishing Group
publist_id: '7585'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Weak ergodicity breaking from quantum many-body scars
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 14
year: '2018'
...
---
_id: '607'
abstract:
- lang: eng
text: We study the Fokker-Planck equation derived in the large system limit of the
Markovian process describing the dynamics of quantitative traits. The Fokker-Planck
equation is posed on a bounded domain and its transport and diffusion coefficients
vanish on the domain's boundary. We first argue that, despite this degeneracy,
the standard no-flux boundary condition is valid. We derive the weak formulation
of the problem and prove the existence and uniqueness of its solutions by constructing
the corresponding contraction semigroup on a suitable function space. Then, we
prove that for the parameter regime with high enough mutation rate the problem
exhibits a positive spectral gap, which implies exponential convergence to equilibrium.Next,
we provide a simple derivation of the so-called Dynamic Maximum Entropy (DynMaxEnt)
method for approximation of observables (moments) of the Fokker-Planck solution,
which can be interpreted as a nonlinear Galerkin approximation. The limited applicability
of the DynMaxEnt method inspires us to introduce its modified version that is
valid for the whole range of admissible parameters. Finally, we present several
numerical experiments to demonstrate the performance of both the original and
modified DynMaxEnt methods. We observe that in the parameter regimes where both
methods are valid, the modified one exhibits slightly better approximation properties
compared to the original one.
acknowledgement: "JH and PM are funded by KAUST baseline funds and grant no. 1000000193
.\r\nWe thank Nicholas Barton (IST Austria) for his useful comments and suggestions.
\r\n\r\n"
article_processing_charge: No
author:
- first_name: Katarina
full_name: Bodova, Katarina
id: 2BA24EA0-F248-11E8-B48F-1D18A9856A87
last_name: Bodova
orcid: 0000-0002-7214-0171
- first_name: Jan
full_name: Haskovec, Jan
last_name: Haskovec
- first_name: Peter
full_name: Markowich, Peter
last_name: Markowich
citation:
ama: 'Bodova K, Haskovec J, Markowich P. Well posedness and maximum entropy approximation
for the dynamics of quantitative traits. Physica D: Nonlinear Phenomena.
2018;376-377:108-120. doi:10.1016/j.physd.2017.10.015'
apa: 'Bodova, K., Haskovec, J., & Markowich, P. (2018). Well posedness and maximum
entropy approximation for the dynamics of quantitative traits. Physica D: Nonlinear
Phenomena. Elsevier. https://doi.org/10.1016/j.physd.2017.10.015'
chicago: 'Bodova, Katarina, Jan Haskovec, and Peter Markowich. “Well Posedness and
Maximum Entropy Approximation for the Dynamics of Quantitative Traits.” Physica
D: Nonlinear Phenomena. Elsevier, 2018. https://doi.org/10.1016/j.physd.2017.10.015.'
ieee: 'K. Bodova, J. Haskovec, and P. Markowich, “Well posedness and maximum entropy
approximation for the dynamics of quantitative traits,” Physica D: Nonlinear
Phenomena, vol. 376–377. Elsevier, pp. 108–120, 2018.'
ista: 'Bodova K, Haskovec J, Markowich P. 2018. Well posedness and maximum entropy
approximation for the dynamics of quantitative traits. Physica D: Nonlinear Phenomena.
376–377, 108–120.'
mla: 'Bodova, Katarina, et al. “Well Posedness and Maximum Entropy Approximation
for the Dynamics of Quantitative Traits.” Physica D: Nonlinear Phenomena,
vol. 376–377, Elsevier, 2018, pp. 108–20, doi:10.1016/j.physd.2017.10.015.'
short: 'K. Bodova, J. Haskovec, P. Markowich, Physica D: Nonlinear Phenomena 376–377
(2018) 108–120.'
date_created: 2018-12-11T11:47:28Z
date_published: 2018-08-01T00:00:00Z
date_updated: 2023-09-19T10:38:34Z
day: '01'
department:
- _id: NiBa
- _id: GaTk
doi: 10.1016/j.physd.2017.10.015
external_id:
arxiv:
- '1704.08757'
isi:
- '000437962900012'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1704.08757
month: '08'
oa: 1
oa_version: Submitted Version
page: 108-120
publication: 'Physica D: Nonlinear Phenomena'
publication_status: published
publisher: Elsevier
publist_id: '7198'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Well posedness and maximum entropy approximation for the dynamics of quantitative
traits
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 376-377
year: '2018'
...
---
_id: '294'
abstract:
- lang: eng
text: We developed a method to calculate two-photon processes in quantum mechanics
that replaces the infinite summation over the intermediate states by a perturbation
expansion. This latter consists of a series of commutators that involve position,
momentum, and Hamiltonian quantum operators. We analyzed several single- and many-particle
cases for which a closed-form solution to the perturbation expansion exists, as
well as more complicated cases for which a solution is found by convergence. Throughout
the article, Rayleigh and Raman scattering are taken as examples of two-photon
processes. The present method provides a clear distinction between the Thomson
scattering, regarded as classical scattering, and quantum contributions. Such
a distinction lets us derive general results concerning light scattering. Finally,
possible extensions to the developed formalism are discussed.
article_processing_charge: No
author:
- first_name: Filippo
full_name: Fratini, Filippo
last_name: Fratini
- first_name: Laleh
full_name: Safari, Laleh
id: 3C325E5E-F248-11E8-B48F-1D18A9856A87
last_name: Safari
- first_name: Pedro
full_name: Amaro, Pedro
last_name: Amaro
- first_name: José
full_name: Santos, José
last_name: Santos
citation:
ama: Fratini F, Safari L, Amaro P, Santos J. Two-photon processes based on quantum
commutators. Physical Review A - Atomic, Molecular, and Optical Physics.
2018;97(4). doi:10.1103/PhysRevA.97.043842
apa: Fratini, F., Safari, L., Amaro, P., & Santos, J. (2018). Two-photon processes
based on quantum commutators. Physical Review A - Atomic, Molecular, and Optical
Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.97.043842
chicago: Fratini, Filippo, Laleh Safari, Pedro Amaro, and José Santos. “Two-Photon
Processes Based on Quantum Commutators.” Physical Review A - Atomic, Molecular,
and Optical Physics. American Physical Society, 2018. https://doi.org/10.1103/PhysRevA.97.043842.
ieee: F. Fratini, L. Safari, P. Amaro, and J. Santos, “Two-photon processes based
on quantum commutators,” Physical Review A - Atomic, Molecular, and Optical
Physics, vol. 97, no. 4. American Physical Society, 2018.
ista: Fratini F, Safari L, Amaro P, Santos J. 2018. Two-photon processes based on
quantum commutators. Physical Review A - Atomic, Molecular, and Optical Physics.
97(4).
mla: Fratini, Filippo, et al. “Two-Photon Processes Based on Quantum Commutators.”
Physical Review A - Atomic, Molecular, and Optical Physics, vol. 97, no.
4, American Physical Society, 2018, doi:10.1103/PhysRevA.97.043842.
short: F. Fratini, L. Safari, P. Amaro, J. Santos, Physical Review A - Atomic, Molecular,
and Optical Physics 97 (2018).
date_created: 2018-12-11T11:45:40Z
date_published: 2018-04-18T00:00:00Z
date_updated: 2023-09-19T10:17:56Z
day: '18'
department:
- _id: MiLe
doi: 10.1103/PhysRevA.97.043842
ec_funded: 1
external_id:
arxiv:
- '1801.06892'
isi:
- '000430296800008'
intvolume: ' 97'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1801.06892
month: '04'
oa: 1
oa_version: Submitted Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Physical Review A - Atomic, Molecular, and Optical Physics
publication_status: published
publisher: American Physical Society
publist_id: '7587'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Two-photon processes based on quantum commutators
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 97
year: '2018'
...
---
_id: '606'
abstract:
- lang: eng
text: We establish the existence of a global solution for a new family of fluid-like
equations, which are obtained in certain regimes in as the mean-field evolution
of the supercurrent density in a (2D section of a) type-II superconductor with
pinning and with imposed electric current. We also consider general vortex-sheet
initial data, and investigate the uniqueness and regularity properties of the
solution. For some choice of parameters, the equation under investigation coincides
with the so-called lake equation from 2D shallow water fluid dynamics, and our
analysis then leads to a new existence result for rough initial data.
acknowledgement: "The work of the author is supported by F.R.S.-FNRS ( Fonds de la
Recherche Scientifique - FNRS ) through a Research Fellowship.\r\n\r\n"
article_processing_charge: No
author:
- first_name: Mitia
full_name: Duerinckx, Mitia
last_name: Duerinckx
- first_name: Julian L
full_name: Fischer, Julian L
id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
last_name: Fischer
orcid: 0000-0002-0479-558X
citation:
ama: Duerinckx M, Fischer JL. Well-posedness for mean-field evolutions arising in
superconductivity. Annales de l’Institut Henri Poincare (C) Non Linear Analysis.
2018;35(5):1267-1319. doi:10.1016/j.anihpc.2017.11.004
apa: Duerinckx, M., & Fischer, J. L. (2018). Well-posedness for mean-field evolutions
arising in superconductivity. Annales de l’Institut Henri Poincare (C) Non
Linear Analysis. Elsevier. https://doi.org/10.1016/j.anihpc.2017.11.004
chicago: Duerinckx, Mitia, and Julian L Fischer. “Well-Posedness for Mean-Field
Evolutions Arising in Superconductivity.” Annales de l’Institut Henri Poincare
(C) Non Linear Analysis. Elsevier, 2018. https://doi.org/10.1016/j.anihpc.2017.11.004.
ieee: M. Duerinckx and J. L. Fischer, “Well-posedness for mean-field evolutions
arising in superconductivity,” Annales de l’Institut Henri Poincare (C) Non
Linear Analysis, vol. 35, no. 5. Elsevier, pp. 1267–1319, 2018.
ista: Duerinckx M, Fischer JL. 2018. Well-posedness for mean-field evolutions arising
in superconductivity. Annales de l’Institut Henri Poincare (C) Non Linear Analysis.
35(5), 1267–1319.
mla: Duerinckx, Mitia, and Julian L. Fischer. “Well-Posedness for Mean-Field Evolutions
Arising in Superconductivity.” Annales de l’Institut Henri Poincare (C) Non
Linear Analysis, vol. 35, no. 5, Elsevier, 2018, pp. 1267–319, doi:10.1016/j.anihpc.2017.11.004.
short: M. Duerinckx, J.L. Fischer, Annales de l’Institut Henri Poincare (C) Non
Linear Analysis 35 (2018) 1267–1319.
date_created: 2018-12-11T11:47:27Z
date_published: 2018-08-01T00:00:00Z
date_updated: 2023-09-19T10:39:09Z
day: '01'
department:
- _id: JuFi
doi: 10.1016/j.anihpc.2017.11.004
external_id:
arxiv:
- '1607.00268'
isi:
- '000437975500005'
intvolume: ' 35'
isi: 1
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1607.00268
month: '08'
oa: 1
oa_version: Submitted Version
page: 1267-1319
publication: Annales de l'Institut Henri Poincare (C) Non Linear Analysis
publication_status: published
publisher: Elsevier
publist_id: '7199'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Well-posedness for mean-field evolutions arising in superconductivity
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 35
year: '2018'
...
---
_id: '5959'
abstract:
- lang: eng
text: Formalizing properties of systems with continuous dynamics is a challenging
task. In this paper, we propose a formal framework for specifying and monitoring
rich temporal properties of real-valued signals. We introduce signal first-order
logic (SFO) as a specification language that combines first-order logic with linear-real
arithmetic and unary function symbols interpreted as piecewise-linear signals.
We first show that while the satisfiability problem for SFO is undecidable, its
membership and monitoring problems are decidable. We develop an offline monitoring
procedure for SFO that has polynomial complexity in the size of the input trace
and the specification, for a fixed number of quantifiers and function symbols.
We show that the algorithm has computation time linear in the size of the input
trace for the important fragment of bounded-response specifications interpreted
over input traces with finite variability. We can use our results to extend signal
temporal logic with first-order quantifiers over time and value parameters, while
preserving its efficient monitoring. We finally demonstrate the practical appeal
of our logic through a case study in the micro-electronics domain.
article_processing_charge: No
author:
- first_name: Alexey
full_name: Bakhirkin, Alexey
last_name: Bakhirkin
- first_name: Thomas
full_name: Ferrere, Thomas
id: 40960E6E-F248-11E8-B48F-1D18A9856A87
last_name: Ferrere
orcid: 0000-0001-5199-3143
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Deian
full_name: Nickovicl, Deian
last_name: Nickovicl
citation:
ama: 'Bakhirkin A, Ferrere T, Henzinger TA, Nickovicl D. Keynote: The first-order
logic of signals. In: 2018 International Conference on Embedded Software.
IEEE; 2018:1-10. doi:10.1109/emsoft.2018.8537203'
apa: 'Bakhirkin, A., Ferrere, T., Henzinger, T. A., & Nickovicl, D. (2018).
Keynote: The first-order logic of signals. In 2018 International Conference
on Embedded Software (pp. 1–10). Turin, Italy: IEEE. https://doi.org/10.1109/emsoft.2018.8537203'
chicago: 'Bakhirkin, Alexey, Thomas Ferrere, Thomas A Henzinger, and Deian Nickovicl.
“Keynote: The First-Order Logic of Signals.” In 2018 International Conference
on Embedded Software, 1–10. IEEE, 2018. https://doi.org/10.1109/emsoft.2018.8537203.'
ieee: 'A. Bakhirkin, T. Ferrere, T. A. Henzinger, and D. Nickovicl, “Keynote: The
first-order logic of signals,” in 2018 International Conference on Embedded
Software, Turin, Italy, 2018, pp. 1–10.'
ista: 'Bakhirkin A, Ferrere T, Henzinger TA, Nickovicl D. 2018. Keynote: The first-order
logic of signals. 2018 International Conference on Embedded Software. EMSOFT:
International Conference on Embedded Software, 1–10.'
mla: 'Bakhirkin, Alexey, et al. “Keynote: The First-Order Logic of Signals.” 2018
International Conference on Embedded Software, IEEE, 2018, pp. 1–10, doi:10.1109/emsoft.2018.8537203.'
short: A. Bakhirkin, T. Ferrere, T.A. Henzinger, D. Nickovicl, in:, 2018 International
Conference on Embedded Software, IEEE, 2018, pp. 1–10.
conference:
end_date: 2018-10-05
location: Turin, Italy
name: 'EMSOFT: International Conference on Embedded Software'
start_date: 2018-09-30
date_created: 2019-02-13T09:19:28Z
date_published: 2018-09-30T00:00:00Z
date_updated: 2023-09-19T10:41:29Z
day: '30'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1109/emsoft.2018.8537203
external_id:
isi:
- '000492828500005'
file:
- access_level: open_access
checksum: 234a33ad9055b3458fcdda6af251b33a
content_type: application/pdf
creator: dernst
date_created: 2020-05-14T16:01:29Z
date_updated: 2020-07-14T12:47:13Z
file_id: '7839'
file_name: 2018_EMSOFT_Bakhirkin.pdf
file_size: 338006
relation: main_file
file_date_updated: 2020-07-14T12:47:13Z
has_accepted_license: '1'
isi: 1
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 1-10
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: The Wittgenstein Prize
publication: 2018 International Conference on Embedded Software
publication_identifier:
isbn:
- '9781538655603'
publication_status: published
publisher: IEEE
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Keynote: The first-order logic of signals'
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...