Calorimetric measurement of work in a quantum system

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Researchers

Research units

  • Karlsruhe Institute of Technology
  • Stony Brook University

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.

Details

Original languageEnglish
Article number115006
Pages (from-to)1-10
Number of pages10
JournalNew Journal of Physics
Volume15
Publication statusPublished - 12 Nov 2013
MoE publication typeA1 Journal article-refereed

    Research areas

  • dissipation, equality, fluctuation, foundations, free-energy differences, nonadiabatic transitions, single-cooper-pair, theorem, thermometry

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