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Common Origin of Quantum Regression and Quantum Fluctuation Dissipation Theorems

P. Shiktorov, E. Starikov, V. Gruzinskis, L. Reggiani, L. Varani, J. C. Vaissiere

cond-mat.stat-mecharXiv:cond-mat/0011420

Abstract

It is shown that the quantum fluctuation dissipation theorem can be considered as a mathematical formulation in the spectral representation of Onsager hypothesis on the regression of fluctuations in physical systems. It is shown that the quantum fluctuation dissipation theorem can be generalized to an arbitrary stationary state.

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