Fluctuation Theorem for Arbitrary Open Quantum Systems

Details Fluctuation Theorem for Arbitrary Open Quantum Systems Fluctuation Theorem for Arbitrary Open Quantum Systems

2009-02-23

arxiv.org/abs/0902.3879v1

Phys. Rev. Lett. 102, 210401 (2009)

Physics

Condensed Matter

Statistical Mechanics

4 pages

Scientific paper

10.1103/PhysRevLett.102.210401

Based on the observation that the thermodynamic equilibrium free energy of an open quantum system in contact with a thermal environment can be understood as the difference between the free energy of the total system and that of the bare environment, the validity of the Crooks theorem and of the Jarzynski equality is extended to open quantum systems. No restrictions on the nature of the environment or on the strength of the coupling between system and environment need to be imposed. This free energy entering the Crooks theorem and the Jarzynski equality is closely related to the Hamiltonian of mean force that generalizes the classical statistical mechanical concept of the potential of mean force.

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