Transport coefficients of a massive pion gas

Abstract

We review or main results concerning the transport coefficients of a light meson gas, in particular we focus on the case of a massive pion gas. Leading order results according to the chiral power-counting are presented for the DC electrical conductivity, thermal conductivity, shear viscosity, and bulk viscosity. We also comment on the possible correlation between the bulk viscosity and the trace anomaly in QCD, as well as the relation between unitarity and a minimum of the quotient $\eta /s$ near the phase transition.

Talk given at the 5th International Conference on Quarks and Nuclear Physics (QNP09), Beijing, September 21-26, 2009

References in corpus (9)

• Viscosity, Black Holes, and Quantum Field Theory
• Bulk viscosity of QCD matter near the critical temperature
• Spectral sum rules for the quark-gluon plasma
• Asymptotics of thermal spectral functions
• Transport coefficients and resonances for a meson gas in Chiral Perturbation Theory
• Pion scattering poles and chiral symmetry restoration
• Chiral Symmetry and light resonances in hot and dense matter
• Chemical nonequilibrium for interacting bosons: applications to the pion gas
• Two complex problems on the lattice: transport coefficients and finite chemical potential

Cited by in corpus (1)

• Macroscopic approximation to relativistic kinetic theory from a nonlinear closure