Quantum thermodynamics: thermodynamics at the nanoscale

Details Quantum thermodynamics: thermodynamics at the nanoscale Quantum thermodynamics: thermodynamics at the nanoscale

2004-02-14

arxiv.org/abs/cond-mat/0402387v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages. Talk given at Physics of Quantum Electronics (PQE2004), Snowbird, by Th.M. Nieuwenhuizen

Scientific paper

10.1080/09500340408231829

A short introduction on quantum thermodynamics is given and three new topics are discussed: 1) Maximal work extraction from a finite quantum system. The thermodynamic prediction fails and a new, general result is derived, the ``ergotropy''. 2) In work extraction from two-temperature setups, the presence of correlations can push the effective efficiency beyond the Carnot bound. 3) In the presence of level crossing, non-slow changes may be more optimal than slow ones.

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