Quantum Jump Approach for Work and Dissipation in a TwoLevel System
Abstract
We apply the quantum jump approach to address the statistics of work in a driven twolevel system coupled to a heat bath. We demonstrate how this question can be analyzed by counting photons absorbed and emitted by the environment in repeated experiments. We find that the common nonequilibrium fluctuation relations are satisfied identically. The usual fluctuationdissipation theorem for linear response applies for weak dissipation and/or weak drive. We point out qualitative differences between the classical and quantum regimes.
 Publication:

Physical Review Letters
 Pub Date:
 August 2013
 DOI:
 10.1103/PhysRevLett.111.093602
 arXiv:
 arXiv:1305.5207
 Bibcode:
 2013PhRvL.111i3602H
 Keywords:

 42.50.Lc;
 03.65.Yz;
 05.30.d;
 05.40.a;
 Quantum fluctuations quantum noise and quantum jumps;
 Decoherence;
 open systems;
 quantum statistical methods;
 Quantum statistical mechanics;
 Fluctuation phenomena random processes noise and Brownian motion;
 Quantum Physics;
 Condensed Matter  Statistical Mechanics
 EPrint:
 doi:10.1103/PhysRevLett.111.093602