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Title: Shear viscosities of photons in strongly coupled plasmas

Abstract

We investigate the shear viscosity of thermalized photons in the quark gluon plasma (QGP) at weak coupling and N=4 super Yang–Mills plasma (SYMP) at both strong and weak couplings. We find that the shear viscosity due to the photon–parton scattering up to the leading order of electromagnetic coupling is suppressed when the coupling of the QGP/SYMP is increased, which stems from the blue-shift of the thermal-photon spectrum at strong coupling. In addition, the shear viscosity rapidly increases near the deconfinement transition in a phenomenological model analogous to the QGP.

Authors:
 [1];  [2]
  1. RIKEN, Saitama (Japan); Univ. of Crete (Greece)
  2. Duke Univ., Durham, NC (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1264789
Alternate Identifier(s):
OSTI ID: 1412765
Report Number(s):
BNL-114741-2017-JA
Journal ID: ISSN 0370-2693; R&D Project: PO3; TRN: US1800353
Grant/Contract Number:  
SC0012704; FG02-05ER41367
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 760; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Yang, Di-Lun, and Müller, Berndt. Shear viscosities of photons in strongly coupled plasmas. United States: N. p., 2016. Web. doi:10.1016/j.physletb.2016.07.034.
Yang, Di-Lun, & Müller, Berndt. Shear viscosities of photons in strongly coupled plasmas. United States. doi:10.1016/j.physletb.2016.07.034.
Yang, Di-Lun, and Müller, Berndt. Mon . "Shear viscosities of photons in strongly coupled plasmas". United States. doi:10.1016/j.physletb.2016.07.034.
@article{osti_1264789,
title = {Shear viscosities of photons in strongly coupled plasmas},
author = {Yang, Di-Lun and Müller, Berndt},
abstractNote = {We investigate the shear viscosity of thermalized photons in the quark gluon plasma (QGP) at weak coupling and N=4 super Yang–Mills plasma (SYMP) at both strong and weak couplings. We find that the shear viscosity due to the photon–parton scattering up to the leading order of electromagnetic coupling is suppressed when the coupling of the QGP/SYMP is increased, which stems from the blue-shift of the thermal-photon spectrum at strong coupling. In addition, the shear viscosity rapidly increases near the deconfinement transition in a phenomenological model analogous to the QGP.},
doi = {10.1016/j.physletb.2016.07.034},
journal = {Physics Letters. Section B},
number = C,
volume = 760,
place = {United States},
year = {Mon Jul 18 00:00:00 EDT 2016},
month = {Mon Jul 18 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2016.07.034

Citation Metrics:
Cited by: 3 works
Citation information provided by
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