Shear viscosities of photons in strongly coupled plasmas

Di-Lun Yang, Berndt Müller

研究成果: Article

4 引用 (Scopus)


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.

ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
出版物ステータスPublished - 2016 9 10

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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