Work and its fluctuations in a driven quantum system

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© 2013 American Physical Society (APS). http://www.aps.org/

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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

060508/1-5

Series

Physical Review B, Volume 87, Issue 6

Abstract

We analyze work done on a quantum system driven by a control field. The average work depends on the whole dynamics of the system, and is obtained as the integral of the average power operator. As a specific example we focus on a superconducting Cooper-pair box forming a two-level system. We obtain expressions for the average work and work distribution in a closed system, and discuss control field and environment contributions to the average work for an open system.

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Keywords

quantum systems, control fields, superconducting, Cooper-pair box

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Citation

Solinas, Paolo & Averin, Dmitri V. & Pekola, Jukka. 2013. Work and its fluctuations in a driven quantum system. Physical Review B. Volume 87, Issue 6. 060508/1-5. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.87.060508.