A transport coefficient: the electrical conductivity
arXiv:hep-ph/0505006 · doi:10.1088/1742-6596/50/1/063
Abstract
I describe the lattice determination of the electrical conductivity of the quark gluon plasma. Since this is the first extraction of a transport coefficient with a degree of control over errors, I next use this to make estimates of other transport related quantities using simple kinetic theory formulae. The resulting estimates are applied to fluctuations, ultra-soft photon spectra and the viscosity. Dimming of ultra-soft photons is exponential in the mean free path, and hence is a very sensitive probe of transport.
Talk given in ICPAQGP 2005, SINP, Kolkata