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Title: Vanishing Bulk Viscosities and Conformal Invariance of the Unitary Fermi Gas

Abstract

By requiring general-coordinate and conformal invariance of the hydrodynamic equations, we show that the unitary Fermi gas has zero bulk viscosity, {zeta}=0, in the normal phase. In the superfluid phase, two of the bulk viscosities have to vanish, {zeta}{sub 1}={zeta}{sub 2}=0, while the third one {zeta}{sub 3} is allowed to be nonzero.

Authors:
 [1]
  1. Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550 (United States)
Publication Date:
OSTI Identifier:
20861591
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevLett.98.020604; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONFORMAL INVARIANCE; COORDINATES; EQUATIONS; FERMI GAS; SUPERFLUIDITY; VISCOSITY

Citation Formats

Son, D. T. Vanishing Bulk Viscosities and Conformal Invariance of the Unitary Fermi Gas. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.020604.
Son, D. T. Vanishing Bulk Viscosities and Conformal Invariance of the Unitary Fermi Gas. United States. doi:10.1103/PHYSREVLETT.98.020604.
Son, D. T. Fri . "Vanishing Bulk Viscosities and Conformal Invariance of the Unitary Fermi Gas". United States. doi:10.1103/PHYSREVLETT.98.020604.
@article{osti_20861591,
title = {Vanishing Bulk Viscosities and Conformal Invariance of the Unitary Fermi Gas},
author = {Son, D. T.},
abstractNote = {By requiring general-coordinate and conformal invariance of the hydrodynamic equations, we show that the unitary Fermi gas has zero bulk viscosity, {zeta}=0, in the normal phase. In the superfluid phase, two of the bulk viscosities have to vanish, {zeta}{sub 1}={zeta}{sub 2}=0, while the third one {zeta}{sub 3} is allowed to be nonzero.},
doi = {10.1103/PHYSREVLETT.98.020604},
journal = {Physical Review Letters},
number = 2,
volume = 98,
place = {United States},
year = {Fri Jan 12 00:00:00 EST 2007},
month = {Fri Jan 12 00:00:00 EST 2007}
}