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Title: Inflow Mechanism for Hydrodynamic Entropy

Abstract

We argue that entropy production in hydrodynamics can be understood via a superspace inflow mechanism. Our arguments are based on a recently developed formalism for constructing effective actions for Schwinger-Keldysh observables in quantum field theories. The formalism explicitly incorporates microscopic unitarity and the Kubo-Martin-Schwinger thermal periodicity conditions, by recasting them in terms of topological Becchi-Rouet-Stora-Tyutin symmetries of the effective action.

Authors:
; ;
Publication Date:
Research Org.:
Univ. of California, Davis, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1462777
Alternate Identifier(s):
OSTI ID: 1498979
Grant/Contract Number:  
SC0009999
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 121 Journal Issue: 5; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 97 MATHEMATICS AND COMPUTING

Citation Formats

Haehl, Felix M., Loganayagam, R., and Rangamani, Mukund. Inflow Mechanism for Hydrodynamic Entropy. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.051602.
Haehl, Felix M., Loganayagam, R., & Rangamani, Mukund. Inflow Mechanism for Hydrodynamic Entropy. United States. https://doi.org/10.1103/PhysRevLett.121.051602
Haehl, Felix M., Loganayagam, R., and Rangamani, Mukund. Fri . "Inflow Mechanism for Hydrodynamic Entropy". United States. https://doi.org/10.1103/PhysRevLett.121.051602.
@article{osti_1462777,
title = {Inflow Mechanism for Hydrodynamic Entropy},
author = {Haehl, Felix M. and Loganayagam, R. and Rangamani, Mukund},
abstractNote = {We argue that entropy production in hydrodynamics can be understood via a superspace inflow mechanism. Our arguments are based on a recently developed formalism for constructing effective actions for Schwinger-Keldysh observables in quantum field theories. The formalism explicitly incorporates microscopic unitarity and the Kubo-Martin-Schwinger thermal periodicity conditions, by recasting them in terms of topological Becchi-Rouet-Stora-Tyutin symmetries of the effective action.},
doi = {10.1103/PhysRevLett.121.051602},
journal = {Physical Review Letters},
number = 5,
volume = 121,
place = {United States},
year = {Fri Aug 03 00:00:00 EDT 2018},
month = {Fri Aug 03 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevLett.121.051602

Citation Metrics:
Cited by: 10 works
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Figures / Tables:

Figure 1 Figure 1: Illustration of the data for hydrodynamic sigma models. The physical d.o.f. are captured in the target space maps $\mathring{X}^\mu(\sigma^a,\theta,\bar{\theta})$ The world volume geometry is equipped with a rigid supervector field $\mathring{\beta}^I$ , which pushes forward to the physical thermal vector in spacetime, while the spacetime metric $g_{{\mu}{\mathcal{v}}},g_{{\Theta}{\bar{\Theta}}} =more » -g_{{\bar{\Theta}{\Theta}}} = i$, pulls back to the world volume metric g̊IJ . The target space Grassmann coordinates are gauge fixed to be aligned with the world volume ones, $\Theta = \theta$, $\bar{\Theta} = \bar{\theta}$.« less

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Works referencing / citing this record:

Effective action for relativistic hydrodynamics: fluctuations, dissipation, and entropy inflow
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An entropy current in superspace
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A panoply of Schwinger-Keldysh transport
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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.