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:
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1264789
- Alternate Identifier(s):
- OSTI ID: 1412765
- Report Number(s):
- BNL-114741-2017-JA
Journal ID: ISSN 0370-2693; S0370269316303756; PII: S0370269316303756
- Grant/Contract Number:
- FG02-05ER41367; 316165; MIS 375734; SC0012704
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 760 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- 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. Netherlands: 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. Netherlands. https://doi.org/10.1016/j.physletb.2016.07.034
Yang, Di-Lun, and Müller, Berndt. Thu .
"Shear viscosities of photons in strongly coupled plasmas". Netherlands. https://doi.org/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 B},
number = C,
volume = 760,
place = {Netherlands},
year = {Thu Sep 01 00:00:00 EDT 2016},
month = {Thu Sep 01 00:00:00 EDT 2016}
}
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.physletb.2016.07.034
https://doi.org/10.1016/j.physletb.2016.07.034
Other availability
Cited by: 3 works
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