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Thermal chiral vortical and magnetic waves: New excitation modes in chiral fluids

Kalaydzhyan, Tigran and Murchikova, Elena M (2017) Thermal chiral vortical and magnetic waves: New excitation modes in chiral fluids. Nuclear Physics B, 919 . pp. 173-181. ISSN 0550-3213. https://resolver.caltech.edu/CaltechAUTHORS:20170615-103903298

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Abstract

In certain circumstances, chiral (parity-violating) medium can be described hydrodynamically as a chiral fluid with microscopic quantum anomalies. Possible examples of such systems include strongly coupled quark–gluon plasma, liquid helium ^3He-A, neutron stars and the Early Universe. We study first-order hydrodynamics of a chiral fluid on a vortex background and in an external magnetic field. We show that there are two previously undiscovered modes describing heat waves propagating along the vortex and magnetic field. We call them the Thermal Chiral Vortical Wave and Thermal Chiral Magnetic Wave. We also identify known gapless excitations of density (chiral vortical and chiral magnetic waves) and transverse velocity (chiral Alfvén wave). We demonstrate that the velocity of the chiral vortical wave is zero, when the full hydrodynamic framework is applied, and hence the wave is absent and the excitation reduces to the charge diffusion mode. We also comment on the frame-dependent contributions to the obtained propagation velocities.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.nuclphysb.2017.03.019DOIArticle
http://www.sciencedirect.com/science/article/pii/S0550321317301116PublisherArticle
Additional Information:© 2017 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. Received 19 December 2016, Accepted 21 March 2017, Available online 24 March 2017. We are very grateful to Misha Stephanov, Naoki Yamamoto, Ho-Ung Yee, Xin An and Maxim Chernodub for critical comments and suggestions. EM thanks John Estes and Hirosi Ooguri for the discussions of fluid gravity duality which prompted her thinking about chiral fluids. EM is particularly grateful to Dr. David and Barbara Groce for their kindness and continuous support. TK work was supported in part by the U.S. Department of Energy under Contract No. DE-FG02-01ER41195. This work was done as a private venture and not in the author's capacity as an employee of the Jet Propulsion Laboratory, California Institute of Technology.
Group:TAPIR
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Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-01ER41195
SCOAP3UNSPECIFIED
Record Number:CaltechAUTHORS:20170615-103903298
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170615-103903298
Official Citation:Tigran Kalaydzhyan, Elena Murchikova, Thermal chiral vortical and magnetic waves: New excitation modes in chiral fluids, Nuclear Physics B, Volume 919, June 2017, Pages 173-181, ISSN 0550-3213, https://doi.org/10.1016/j.nuclphysb.2017.03.019. (http://www.sciencedirect.com/science/article/pii/S0550321317301116)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:78247
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Jun 2017 20:38
Last Modified:03 Oct 2019 18:06

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