High Temperature Response Functions and the Non-Abelian Kubo Formula

Abstract

We describe the relationship between time-ordered and retarded response functions in a plasma. We obtain an expression, including the proper $i\epsilon$-prescription, for the induced current due to hard thermal loops in a non-Abelian theory, thus giving the non-Abelian generalization of the Kubo formula. The result is closely related to the eikonal for a Chern-Simons theory and is relevant for a gauge-invariant description of Landau damping in the quark-gluon plasma at high temperature.

14 pages in LaTeX, MIT CTP #2205 and CU-TP #594

References in corpus (3)

• The Secret Chern-Simons Action for the Hot Gluon Plasma
• Chern-Simons Theory and the Quark-Gluon Plasma
• Hard Thermal Loops, Gauged WZNW Action and the Energy of Hot Quark-Gluon Plasma

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