Wednesday, December 12, 2012

1212.2576 (G. B. Lesovik et al.)

Second law of thermodynamics and irreversibility in quantum systems    [PDF]

G. B. Lesovik, I. A. Sadovskyy
We test Boltzmann's H-theorem for several models of particle random walk. We study the influence of interaction between the particle and reservoir/detectors on entropy and find entropy increasing in time for some models and behaving non-monotonically for others. The key mechanism affecting the entropy growth is the quantum entanglement between the system and the reservoir. We discuss the details of the system-reservoir interaction, such as presence of the interference in the system and number of interactions with detector parts, and their impact on the monotonicity of entropy.
View original: http://arxiv.org/abs/1212.2576

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