Title: | Non-equilibrium steady states in quantum critical systems with Lifshitz scaling |
Author: |
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Date: | 2019-12-01 |
Language: | English |
Scope: | 115 |
University/Institute: | Háskóli Íslands University of Iceland |
School: | School of Engineering and Natural Sciences (UI) Verkfræði- og náttúruvísindasvið (HÍ) |
Department: | Science Institute (UI) Raunvísindastofnun (HÍ) |
Series: | Journal of High Energy Physics;2019(12) |
ISSN: | 1029-8479 |
DOI: | 10.1007/JHEP12(2019)115 |
Subject: | Nuclear and High Energy Physics; Effective Field Theories; Space-Time Symmetries; Quantum Dissipative Systems; Kjarneðlisfræði; Skammtafræði |
URI: | https://hdl.handle.net/20.500.11815/1528 |
Citation:Fernández, D., Rajagopal, A. & Thorlacius, L. Non-equilibrium steady states in quantum critical systems with Lifshitz scaling. J. High Energ. Phys. 2019, 115 (2019). https://doi.org/10.1007/JHEP12(2019)115
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Abstract:We study out-of-equilibrium energy transport in a quantum critical fluid with
Lifshitz scaling symmetry following a local quench between two semi-infinite fluid reservoirs.
The late time energy flow is universal and is accommodated via a steady state occupying an
expanding central region between outgoing shock and rarefaction waves. We consider the
admissibility and entropy conditions for the formation of such a non-equilibrium steady
state for a general dynamical critical exponent z in arbitrary dimensions and solve the
associated Riemann problem. The Lifshitz fluid with z = 2 can be obtained from a Galilean
boost invariant field theory and the non-equilibrium steady state is identified as a boosted
thermal state. A Lifshitz fluid with generic z is scale invariant but without boost symmetry
and in this case the non-equilibrium steady state is genuinely non-thermal.
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Description:Publisher's version (útgefin grein).
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Rights:Open Access. This article is distributed under the terms of the Creative Commons
Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.
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