Article (Scientific journals)
Large Deviations Beyond the Kibble-Zurek Mechanism
BALDUCCI, Federico; Beau, Mathieu; YANG, Jing et al.
2023In Physical Review Letters, 131 (23)
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Keywords :
Quantum Physics; cond-mat.quant-gas; Physics - Statistical Mechanics; High Energy Physics - Theory; General Physics and Astronomy
Abstract :
[en] The Kibble-Zurek mechanism (KZM) predicts that the average number of topological defects generated upon crossing a continuous or quantum phase transition obeys a universal scaling law with the quench time. Fluctuations in the defect number near equilibrium are approximately of Gaussian form, in agreement with the central limit theorem. Using large deviations theory, we characterize the universality of fluctuations beyond the KZM and report the exact form of the rate function in the transverse-field quantum Ising model. In addition, we characterize the scaling of large deviations in an arbitrary continuous phase transition, building on recent evidence establishing the universality of the defect number distribution.
Disciplines :
Physics
Author, co-author :
BALDUCCI, Federico  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)
Beau, Mathieu 
YANG, Jing  ;  University of Luxembourg > Faculty of Science, Technology and Medicine > Department of Physics and Materials Science > Team Adolfo DEL CAMPO ECHEVARRIA
Gambassi, Andrea 
del Campo, Adolfo 
External co-authors :
yes
Language :
English
Title :
Large Deviations Beyond the Kibble-Zurek Mechanism
Publication date :
2023
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society (APS)
Volume :
131
Issue :
23
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
QuantERA
Horizon 2020 Framework Programme
Ministero dell’Università e della Ricerca
PNRR
Commentary :
6+6 pages, 1+2 figures
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since 21 December 2023

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