Derivation of the fluctuation-dissipation theorem from unitarity

Abstract

Using the closed time path formalism in thermal field theory, we give a derivation of the fluctuation-dissipation theorem which is based on the unitarity of the $S$-matrix.

4 pages, 2 figures

References in corpus (1)

• Perturbative Non-Equilibrium Thermal Field Theory

Cited by in corpus (3)

• Brownian Axion-like particles
• Backreaction Effects on Nonequilibrium Spectral Function
• Generalized Kadanoff-Baym relation in nonequilibrium quenched models