High Temperature Response Functions and the Non-Abelian Kubo Formula

Details High Temperature Response Functions and the Non-Abelian Kubo Formula High Temperature Response Functions and the Non-Abelian Kubo Formula

1993-05-11

arxiv.org/abs/hep-ph/9305241v1

Phys.Rev. D48 (1993) 4991-4998

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.48.4991

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.

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