Calorimetric measurement of work in a quantum system

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2013
Major/Subject
Mcode
Degree programme
Language
en
Pages
115006/1-10
Series
New Journal of Physics, Volume 15, Issue 11
Abstract
We propose a calorimetric measurement of work in a quantumsystem. As a physical realization, we consider a superconducting two-levelsystem, a Cooper-pair box, driven by a gate voltage past an avoided levelcrossing at charge degeneracy. We demonstrate that, with realistic experimentalparameters, the temperature measurement of a resistor (environment) can detectsingle microwave photons emitted or absorbed by the two-level system. Thismethod would thus be a way to measure the full distribution of work in repeatedmeasurements, and to assess the quantum fluctuation relations.
Description
Keywords
free-energy differences, Cooper-pair boxes, nonadiabatic transitions, fluctuation, dissipation, thermometry, foundations, equality
Other note
Citation
Pekola, Jukka & Solinas, P. & Shnirman, A. & Averin, D. V. 2013. Calorimetric measurement of work in a quantum system. New Journal of Physics. Volume 15, Issue 11. 115006/1-10. ISSN 1367-2630 (printed). DOI: 10.1088/1367-2630/15/11/115006.