Fluctuation theorems for continuously monitored quantum fluxes

Abstract

It is shown that quantum fluctuation theorems remain unaffected if measurements of any kind and number of observables are performed during the action of a force protocol. That is, although the backward and forward probabilities entering the fluctuation theorems are both altered by these measurements, their ratio remains unchanged. This observation allows to describe the measurement of fluxes through interfaces and, in this way, to bridge the gap between the current theory, based on only two measurements performed at the beginning and end of the protocol, and experiments that are based on continuous monitoring.

4 pages, 1 figure. Accepted in Physical Review Letters

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Cited by in corpus (6)

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• Influence of measurements on the statistics of work performed on a quantum system
• Fluctuation Theorem and Microreversibility in a Quantum Coherent Conductor
• Quantum Bochkov-Kuzovlev Work Fluctuation Theorems
• Nonequilibrium work statistics of an Aharonov-Bohm flux
• Supersymmetry and fluctuation relations for currents in closed networks