Quasinormal modes of charged magnetic black branes & chiral magnetic transport

Abstract We compute quasinormal modes (QNMs) of the metric and gauge field perturbations about black branes electrically and magnetically charged in the Einstein-Maxwell-Chern-Simons theory. By the gauge/gravity correspondence, this theory is dual to a particular class of field theories with a chira...

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Main Authors:	Martin Ammon, Matthias Kaminski, Roshan Koirala, Julian Leiber, Jackson Wu
Format:	Article
Language:	English
Published:	Springer 2017-04-01
Series:	Journal of High Energy Physics
Subjects:	AdS-CFT Correspondence Gauge-gravity correspondence Holography and condensed matter physics (AdS/CMT) Quark-Gluon Plasma
Online Access:	http://link.springer.com/article/10.1007/JHEP04(2017)067

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spelling	doaj-art-275b3f58194f4076a825e5a9dc0adefa2018-08-15T21:32:34ZengSpringerJournal of High Energy Physics1029-84792017-04-012017414010.1007/JHEP04(2017)067Quasinormal modes of charged magnetic black branes & chiral magnetic transportMartin Ammon0Matthias Kaminski1Roshan Koirala2Julian Leiber3Jackson Wu4Theoretisch-Physikalisches Institut, Friedrich-Schiller University of JenaDepartment of Physics and Astronomy, University of AlabamaDepartment of Physics and Astronomy, University of AlabamaTheoretisch-Physikalisches Institut, Friedrich-Schiller University of JenaDepartment of Physics and Astronomy, University of AlabamaAbstract We compute quasinormal modes (QNMs) of the metric and gauge field perturbations about black branes electrically and magnetically charged in the Einstein-Maxwell-Chern-Simons theory. By the gauge/gravity correspondence, this theory is dual to a particular class of field theories with a chiral anomaly, in a thermal charged plasma state subjected to a constant external magnetic field, B. The QNMs are dual to the poles of the two-point functions of the energy-momentum and axial current operators, and they encode information about the dissipation and transport of charges in the plasma. Complementary to the gravity calculation, we work out the hydrodynamic description of the dual field theory in the presence of a chiral anomaly, and a constant external B. We find good agreement with the weak field hydrodynamics, which can extend beyond the weak B regime into intermediate regimes. Furthermore, we provide results that can be tested against thermodynamics and hydrodynamics in the strong B regime. We find QNMs exhibiting Landau level behavior, which become long-lived at large B if the anomaly coefficient exceeds a critical magnitude. Chiral transport is analyzed beyond the hydrodynamic approximation for the five (formerly) hydrodynamic modes, including a chiral magnetic wave.http://link.springer.com/article/10.1007/JHEP04(2017)067AdS-CFT CorrespondenceGauge-gravity correspondenceHolography and condensed matter physics (AdS/CMT)Quark-Gluon Plasma
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language	English
format	Article
author	Martin Ammon Matthias Kaminski Roshan Koirala Julian Leiber Jackson Wu
spellingShingle	Martin Ammon Matthias Kaminski Roshan Koirala Julian Leiber Jackson Wu Quasinormal modes of charged magnetic black branes & chiral magnetic transport Journal of High Energy Physics AdS-CFT Correspondence Gauge-gravity correspondence Holography and condensed matter physics (AdS/CMT) Quark-Gluon Plasma
author_facet	Martin Ammon Matthias Kaminski Roshan Koirala Julian Leiber Jackson Wu
author_sort	Martin Ammon
title	Quasinormal modes of charged magnetic black branes & chiral magnetic transport
title_short	Quasinormal modes of charged magnetic black branes & chiral magnetic transport
title_full	Quasinormal modes of charged magnetic black branes & chiral magnetic transport
title_fullStr	Quasinormal modes of charged magnetic black branes & chiral magnetic transport
title_full_unstemmed	Quasinormal modes of charged magnetic black branes & chiral magnetic transport
title_sort	quasinormal modes of charged magnetic black branes & chiral magnetic transport
publisher	Springer
series	Journal of High Energy Physics
issn	1029-8479
publishDate	2017-04-01
description	Abstract We compute quasinormal modes (QNMs) of the metric and gauge field perturbations about black branes electrically and magnetically charged in the Einstein-Maxwell-Chern-Simons theory. By the gauge/gravity correspondence, this theory is dual to a particular class of field theories with a chiral anomaly, in a thermal charged plasma state subjected to a constant external magnetic field, B. The QNMs are dual to the poles of the two-point functions of the energy-momentum and axial current operators, and they encode information about the dissipation and transport of charges in the plasma. Complementary to the gravity calculation, we work out the hydrodynamic description of the dual field theory in the presence of a chiral anomaly, and a constant external B. We find good agreement with the weak field hydrodynamics, which can extend beyond the weak B regime into intermediate regimes. Furthermore, we provide results that can be tested against thermodynamics and hydrodynamics in the strong B regime. We find QNMs exhibiting Landau level behavior, which become long-lived at large B if the anomaly coefficient exceeds a critical magnitude. Chiral transport is analyzed beyond the hydrodynamic approximation for the five (formerly) hydrodynamic modes, including a chiral magnetic wave.
topic	AdS-CFT Correspondence Gauge-gravity correspondence Holography and condensed matter physics (AdS/CMT) Quark-Gluon Plasma
url	http://link.springer.com/article/10.1007/JHEP04(2017)067
_version_	1612705721072222208

Quasinormal modes of charged magnetic black branes & chiral magnetic transport

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