Calorimetric measurement of work in a quantum system

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Abstract

We propose a calorimetric measurement of work in a quantum system. As a physical realization, we consider a superconducting two-level system, a Cooper-pair box, driven by a gate voltage past an avoided level crossing at charge degeneracy. We demonstrate that, with realistic experimental parameters, the temperature measurement of a resistor (environment) can detect single microwave photons emitted or absorbed by the two-level system. This method would thus be a way to measure the full distribution of work in repeated measurements, and to assess the quantum fluctuation relations. © IOP Publishing and Deutsche Physikalische Gesellschaft.

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Pekola, J. P., Solinas, P., Shnirman, A., & Averin, D. V. (2013). Calorimetric measurement of work in a quantum system. New Journal of Physics, 15. https://doi.org/10.1088/1367-2630/15/11/115006

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