Chiral hydrodynamics in strong external magnetic fields

A bstract We construct the general hydrodynamic description of (3+1)-dimensional chiral charged (quantum) fluids subject to a strong external magnetic field with effective field theory methods. We determine the constitutive equations for the energy-momentum tensor and the axial charge current, in pa...

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Bibliographic Details
Published in:The journal of high energy physics Vol. 2021; no. 4; pp. 1 - 82
Main Authors: Ammon, Martin, Grieninger, Sebastian, Hernandez, Juan, Kaminski, Matthias, Koirala, Roshan, Leiber, Julian, Wu, Jackson
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2021
Springer Nature B.V
Springer Nature
SpringerOpen
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ISSN:1029-8479, 1029-8479
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Summary:A bstract We construct the general hydrodynamic description of (3+1)-dimensional chiral charged (quantum) fluids subject to a strong external magnetic field with effective field theory methods. We determine the constitutive equations for the energy-momentum tensor and the axial charge current, in part from a generating functional. Furthermore, we derive the Kubo formulas which relate two-point functions of the energy-momentum tensor and charge current to 27 transport coefficients: 8 independent thermodynamic, 4 independent non-dissipative hydrodynamic, and 10 independent dissipative hydrodynamic transport coefficients. Five Onsager relations render 5 more transport coefficients dependent. We uncover four novel transport effects, which are encoded in what we call the shear-induced conductivity, the two expansion-induced longitudinal conductivities and the shear-induced Hall conductivity. Remarkably, the shear-induced Hall conductivity constitutes a novel non-dissipative transport effect. As a demonstration, we compute all transport coefficients explicitly in a strongly coupled quantum fluid via holography.
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German Research Foundation (DFG)
Comunidad de Madrid
SC0012447; 406235073; 2017-T1/TIC-5258; SEV-2016-0597; PGC2018-095976-B-C21
USDOE Office of Science (SC)
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP04(2021)078