Nuclear Theory/Riken Seminar

"Diagrammatic method for computing transport coefficients near the chiral phase transition"

Presented by Yoshimasa Hidaka, Kyoto University

Friday, February 11, 2011, 2:00 pm — Small Seminar Room, Bldg. 510

We propose a novel diagrammatic method for computing transport coefficients in relativistic quantum field theory. The self-consistent equation for summing the diagrams with pinch singularities has a form of a linearized kinetic equation as usual, but our formalism enables us to incorporate higher oder corrections of the coupling systematically. We apply our formalism to a simple model with chiral symmetry, and discuss the behavior of the transport coefficients around the chiral phase transition at finite temperature.

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