English

Quantum entropy production in phase space

Statistical Mechanics 2013-08-13 v2 Quantum Physics

Abstract

A fluctuation theorem for the nonequilibrium entropy production in quantum phase space is derived, which enables the consistent thermodynamic description of arbitrary quantum systems, open and closed. The new treatment naturally generalizes classical results to the quantum domain. As an illustration the harmonic oscillator dragged through a thermal bath is solved numerically. Finally, the significance of the new approach is discussed in detail, and the phase space treatment is opposed to the two time energy measurement approach.

Keywords

Cite

@article{arxiv.1307.3183,
  title  = {Quantum entropy production in phase space},
  author = {Sebastian Deffner},
  journal= {arXiv preprint arXiv:1307.3183},
  year   = {2013}
}

Comments

6 pages, 2 figures; published version

R2 v1 2026-06-22T00:49:52.661Z