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arXiv · 1607.02404

The role of quantum measurement in stochastic thermodynamics

Cyril Elouard·David Herrera-Martí·Maxime Clusel·Alexia Auffèves
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Abstract

This article sets up a new formalism to investigate stochastic thermodynamics in the quantum regime, where stochasticity and irreversibility primarily come from quantum measurement. In the absence of any bath, we define a purely quantum component to heat exchange, that corresponds to energy fluctuations caused by measurement back-action. Energetic and entropic signatures of measurement induced irreversibility are then investigated for canonical experiments of quantum optics, and the energetic cost of counter-acting decoherence is characterized on a simple state-stabilizing protocol. By placing quantum measurement in a central position, our formalism contributes to bridge a gap between experimental quantum optics and quantum thermodynamics.

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Cyril Elouard, David Herrera-Martí, Maxime Clusel, Alexia Auffèves. 2016-07-08. The role of quantum measurement in stochastic thermodynamics. https://doi.org/10.1038/s41534-017-0008-4

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