Shear viscosities of photons in strongly coupled plasmas

Di-Lun Yang, Berndt Müller

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)565-570
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume760
DOIs
Publication statusPublished - 2016 Sep 10
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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