Quantum entropy production in phase space
Loading...
Permanent Link
Author/Creator
Author/Creator ORCID
Date
2013-08-12
Type of Work
Department
Program
Citation of Original Publication
Sebastian Deffner, Quantum entropy production in phase space, EPL (Europhysics Letters), Volume 103, Number 3 (2013), 10.1209/0295-5075/103/30001
Rights
This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
© EPLA, 2013
© EPLA, 2013
Subjects
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.