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An inflow mechanism for hydrodynamic entropy

An inflow mechanism for hydrodynamic entropy
An inflow mechanism for hydrodynamic entropy
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 BRST symmetries of the effective action.
hep-th, cond-mat.stat-mech
Haehl, Felix M.
eb0d74fd-0d8b-4b1b-8686-79d43c2a3a5f
Loganayagam, R.
18806477-1ac8-419a-9729-0e36440bd36a
Rangamani, Mukund
c6e93885-0b7e-4e8c-92e5-56227da78a81
Haehl, Felix M.
eb0d74fd-0d8b-4b1b-8686-79d43c2a3a5f
Loganayagam, R.
18806477-1ac8-419a-9729-0e36440bd36a
Rangamani, Mukund
c6e93885-0b7e-4e8c-92e5-56227da78a81

Haehl, Felix M., Loganayagam, R. and Rangamani, Mukund (2018) An inflow mechanism for hydrodynamic entropy. Phys. Rev. Lett., 121 (5), [051602]. (doi:10.1103/PhysRevLett.121.051602).

Record type: Article

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 BRST symmetries of the effective action.

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1803.08490v2
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Accepted/In Press date: 29 June 2018
Published date: 3 August 2018
Additional Information: 7 pages, 1 figure; v2: minor improvements
Keywords: hep-th, cond-mat.stat-mech

Identifiers

Local EPrints ID: 471241
URI: http://eprints.soton.ac.uk/id/eprint/471241
DOI: doi:10.1103/PhysRevLett.121.051602
PURE UUID: 283889c0-f0f5-4219-9e00-070b1799e2f3
ORCID for Felix M. Haehl: ORCID iD orcid.org/0000-0001-7426-0962

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Date deposited: 01 Nov 2022 17:40
Last modified: 17 Mar 2024 04:14

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Contributors

Author: Felix M. Haehl ORCID iD
Author: R. Loganayagam
Author: Mukund Rangamani

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