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

doi:10.1103/physrevb.83.155431

arXiv · 1101.5850

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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Abstract

Mesoscopic systems provide us a unique experimental stage to address non-equilibrium 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 semi-quantitatively 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.

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Shuji Nakamura, Yoshiaki Yamauchi, Masayuki Hashisaka, Kensaku Chida, Kensuke Kobayashi, Teruo Ono, Renaud Leturcq, Klaus Ensslin, Keiji Saito, Yasuhiro Utsumi, Arthur C. Gossard. 2011-04-20. Fluctuation Theorem and Microreversibility in a Quantum Coherent Conductor. https://doi.org/10.1103/physrevb.83.155431

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