arXiv:2407.11711 · Physical review. B./Physical review. B

Onsager's regression hypothesis adjusted to quantum systems

Peter Reimann, Christian Eidecker-Dunkel

Published Jul 15, 2024• 5 citations

Abstract

Some 93 years ago, Onsager postulated his so-called regression hypothesis, which relates the time-dependent relaxation of a close-to-equilibrium system to its temporal correlations at thermal equilibrium. As far as quantum systems are concerned, it is long-known that this hypothesis cannot be quantitatively correct. Here, the authors analytically derive a suitably adjusted version of Onsager's original formula, provide a wide variety of numerical illustrations, and compare it with some pertinent previous works.

DOI: 10.1103/physrevb.110.014306

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