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arXiv · 1903.11881

Relaxation theory for perturbed many-body quantum systems versus numerics and experiment

Lennart Dabelow·Peter Reimann
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Abstract

An analytical prediction is established of how an isolated many-body quantum system relaxes towards its thermal long-time limit under the action of a time-independent perturbation, but still remaining sufficiently close to a reference case whose temporal relaxation is known. This is achieved within the conceptual framework of a typicality approach by showing and exploiting that the time-dependent expectation values behave very similarly for most members of a suitably chosen ensemble of perturbations. The predictions are validated by comparison with various numerical and experimental results from the literature.

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BibTeXRIS

Lennart Dabelow, Peter Reimann. 2020-03-24. Relaxation theory for perturbed many-body quantum systems versus numerics and experiment. https://doi.org/10.1103/physrevlett.124.120602

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