Fluctuation Theorem and Microreversibility in a Quantum Coherent Conductor

Details Fluctuation Theorem and Microreversibility in a Quantum Coherent Conductor Fluctuation Theorem and Microreversibility in a Quantum Coherent Conductor

2011-01-31

arxiv.org/abs/1101.5850v3

Phys. Rev. B 83, 155431 (2011) [Editors' Suggestion]

Physics

Condensed Matter

Statistical Mechanics

7 pages, 5 figures

Scientific paper

10.1103/PhysRevB.83.155431

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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