Shear viscosity over entropy density ratio with extended quasiparticles

Dec 9, 2015
14 pages
Published in:
  • Phys.Rev.D 93 (2016) 5, 056010
  • Published: Mar 29, 2016
e-Print:

Citations per year

20142015201604
Abstract: (APS)
We consider an effective field theory description of beyond-quasiparticle excitations aiming to associate the transport properties of the system with the spectral density of states. Tuning various properties of the many-particle correlations, we investigate how the robust microscopic features are translated into the macroscopic observables like shear viscosity and entropy density. The liquid-gas crossover is analysed using several examples. A thermal constraint on the fluidity measure η/s is discussed.
Note:
  • 13 pages, 7 figures, uses revtex4-1; published version
  • entropy: density: ratio
  • density: spectral
  • viscosity
  • effective field theory
  • transport theory
  • quasiparticle
  • excited state
  • correlation
  • thermal