Fluctuation theorem and microreversibility in a quantum coherent conductor

Shuji Nakamura, Yoshiaki Yamauchi, Masayuki Hashisaka, Kensaku Chida, Kensuke Kobayashi, Teruo Ono, Renaud Leturcq, Klaus Ensslin, Keiji Saito, Yasuhiro Utsumi, Arthur C. Gossard

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Mesoscopic systems provide us a unique experimental stage to address nonequilibrium quantum statistical physics. By using a simple tunneling model, we describe the electron exchange process via a quantum coherent conductor between two reservoirs, which yields the fluctuation theorem (FT) in mesoscopic transport. We experimentally show that such a treatment is semiquantitatively validated in the current and noise measurement in an Aharonov-Bohm ring. The experimental proof of the microreversibility assumed in the derivation of FT is presented.

Original languageEnglish
Article number155431
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number15
Publication statusPublished - 2011 Apr 18
Externally publishedYes


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nakamura, S., Yamauchi, Y., Hashisaka, M., Chida, K., Kobayashi, K., Ono, T., Leturcq, R., Ensslin, K., Saito, K., Utsumi, Y., & Gossard, A. C. (2011). Fluctuation theorem and microreversibility in a quantum coherent conductor. Physical Review B - Condensed Matter and Materials Physics, 83(15), [155431]. https://doi.org/10.1103/PhysRevB.83.155431