The European Physical Journal C

ISSN: 1434-6044 (printed version)
ISSN: 1434-6052 (electronic version)

Table of Contents

Abstract Volume 1 Issue 3/4 (1998) pp 619-625

theoretical physics:
Three-point functions at finite temperature

M.E. Carrington (*), U. Heinz

Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany

Received: 7 March 1997, Revised version: 16 May 1997

Abstract. We study 3-point functions at finite temperature in the closed time path formalism. We give a general decomposition of the eight component tensor in terms of seven vertex functions. We derive a spectral representation for these seven functions in terms of two independent real spectral functions. We derive relationships between the seven functions and obtain a representation of the vertex tensor that greatly simplifies calculations in real time.

(*) Humboldt Fellow. Permanent address: Department of Physics and Winnipeg Institute of Theoretical Physics, University of Winnipeg, Winnipeg, Manitoba, Canada R3B 2E9

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Online publication: February 5, 1998
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