Fluctuation theorem and microreversibility in a quantum coherent conductor
Fluctuation theorem and microreversibility in a quantum coherent conductor
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量子相干导体中的涨落定理和微可逆性
DOI：
10.1103/physrevb.83.155431
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发表时间：
2011
影响因子：
3.7
通讯作者：
Arthur C.Gossard
中科院分区：
文献类型：
--
作者：
Shuji Nakamura;Yoshiaki Yamauchi;Masayuki Hashisaka;Kensaku Chida;Kensuke Kobayashi;Teruo Ono;Renaud Leturcq;Klaus Ensslin;Keiji Saito;Yasuhiro Utsumi;Arthur C.Gossard
介观系统为我们研究非平衡态量子统计物理提供了一个独特的实验平台。利用一个简单的隧穿模型，描述了两个库之间通过量子相干导体的电子交换过程，得到了介观输运中的涨落定理。我们的实验表明，这样的治疗是半定量验证在Aharonov-Bohm环的电流和噪声测量。在FT推导假设的微观可逆性的实验证明。
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.