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arXiv · 1502.06115

Derivation of the fluctuation-dissipation theorem from unitarity

Ashok K. Das·J. Frenkel
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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.

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Ashok K. Das, J. Frenkel. 2015-09-25. Derivation of the fluctuation-dissipation theorem from unitarity. https://doi.org/10.1142/s0217732315501631

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