Refining Deutsch's approach to thermalization
Peter Reimann, Lennart Dabelow
TL;DR
This paper revisits Deutsch's foundational work on quantum thermalization, clarifying key steps and broadening the class of systems where thermalization can be understood.
Contribution
It provides missing details in Deutsch's original approach and extends the theory to a wider range of quantum systems.
Findings
Clarified essential steps in Deutsch's thermalization approach
Extended the class of quantum systems that exhibit thermalization
Provided a more comprehensive framework for quantum thermalization
Abstract
The ground breaking investigation by Deutsch [Phys. Rev. A 43, 2046 (1991)] of how closed many-body quantum systems approach thermal equilibrium is revisited. It is shown how to carry out some important steps which were still missing in that paper. Moreover, the class of admitted systems is considerably extended.
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