Universal scaling of unequal-time correlation functions in ultracold Bose gases far from equilibrium
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Authors
Schachner, A
Orioli, AP
Berges, J
Publication Date
2017Journal Title
Physical Review A
ISSN
2469-9926
Publisher
American Physical Society (APS)
Volume
95
Issue
5
Number
ARTN 053605
Pages
053605
Type
Article
This Version
AM
Metadata
Show full item recordCitation
Schachner, A., Orioli, A., & Berges, J. (2017). Universal scaling of unequal-time correlation functions in ultracold Bose gases far from equilibrium. Physical Review A, 95 (5. ARTN 053605), 053605. https://doi.org/10.1103/PhysRevA.95.053605
Abstract
We explore the far-from-equilibrium dynamics of Bose gases in a universal
regime associated to nonthermal fixed points. While previous investigations
concentrated on scaling functions and exponents describing equal-time
correlations, we compute the additional scaling functions and dynamic exponent
$z$ characterizing the frequency dependence or dispersion from unequal-time
correlations. This allows us to compare the characteristic condensation and
correlation times from a finite-size scaling analysis depending on the system's
volume.
Keywords
cond-mat.quant-gas, cond-mat.quant-gas, cond-mat.stat-mech, hep-ph
Identifiers
External DOI: https://doi.org/10.1103/PhysRevA.95.053605
This record's URL: https://www.repository.cam.ac.uk/handle/1810/332772
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