Effect of the measurement circuit on the fluctuation theorem for the electric current through a semiconducting nanostructure
测量电路对通过半导体纳米结构的电流涨落定理的影响
基本信息
- 批准号:23740294
- 负责人:
- 金额:$ 2.91万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Young Scientists (B)
- 财政年份:2011
- 资助国家:日本
- 起止时间:2011 至 2013
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The fluctuation theorem (FT) which is valid far from equilibrium and extends the second law of thermodynamics to small systems, has been recently applied to the mesoscopic quantum transport. We have theoretically studied the impact of the measurement circuit on the FT of quantum conductors. 1) We have considered the FT for a coupled system, an electron wave interferometer and an LC circuit (measurement circuit), and found that the back-action of the measurement circuit is necessary to be consistent with the FT for this setup. 2) We theoretically derived and experimentally checked universal relations among nonlinear 4-terminal transport coefficients of a coupled system, a double-quantum dot and a quantum point contact (measurement circuit). 3) We have also found a novel switching exponent for the magnetization reversal driven by the non-conservative spin torque and thermal fluctuations.
涨落定理将热力学第二定律推广到小系统,并在远平衡状态下有效,最近被应用于介观量子输运。我们从理论上研究了测量电路对量子导体傅立叶变换的影响。1)我们考虑了耦合系统、电子波干涉仪和LC电路(测量电路)的傅立叶变换,并发现测量电路的反作用是必要的,以便与该设置的傅立叶变换保持一致。2)从理论推导和实验验证了耦合系统、双量子点和量子点接触(测量电路)非线性四端输运系数之间的普遍关系。3)我们还发现了由非保守自旋转矩和热波动驱动的磁化反转的新的开关指数。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Test of the fluctuation theorem for single-electron transport
单电子输运涨落定理的检验
- DOI:10.1063/1.4795540
- 发表时间:2013
- 期刊:
- 影响因子:3.2
- 作者:B. Küng;C. Rössler;M. Beck;M. Marthaler;D. S. Golubev;Y. Utsumi;T. Ihn;K. Ensslin
- 通讯作者:K. Ensslin
Fluctuation theorem in quantum conductors
量子导体中的涨落定理
- DOI:
- 发表时间:2013
- 期刊:
- 影响因子:0
- 作者:M. Marthaler;Y. Utsumi;D. S. Golubev;A. Shnirman;Gerd Schoen;松本剛;松本剛;内海裕洋,D. S. Golubev,小林研介;M. Isobe and B. J. Alder;松本剛;Y. Utsumi
- 通讯作者:Y. Utsumi
量子揺らぎの定理検証実験の方法について
关于量子涨落定理验证实验的方法
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:植田暁子,内海裕洋,Ora Entin-Wohlman,Amnon Aharony;芝田光敏,内海裕洋,Michael Marthaler,谷口知大,今村裕志;内海裕洋,D. Golubev,M. Marthaler,G. Schoen,小林研介
- 通讯作者:内海裕洋,D. Golubev,M. Marthaler,G. Schoen,小林研介
量子ドットアハロノフボームリングと仕事の揺らぎ定理
量子点Aharonov-Bohm环和功涨落定理
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:S. Takayoshi;H. Katsura;N. Watanabe;and H. Aoki;内海裕洋,D. S. GolubevA,M. Marthaler,Gerd Schoen,小林研介
- 通讯作者:内海裕洋,D. S. GolubevA,M. Marthaler,Gerd Schoen,小林研介
Thermally activated switching rate of a nanomagnet in the presence of spin torque
- DOI:10.1103/physrevb.88.214414
- 发表时间:2013-12-16
- 期刊:
- 影响因子:3.7
- 作者:Taniguchi, Tomohiro;Utsumi, Yasuhiro;Imamura, Hiroshi
- 通讯作者:Imamura, Hiroshi
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UTSUMI Yasuhiro其他文献
Xylem Water Distribution in Woody Plants Visualized with a Cryo-Scanning Electron Microscope
用冷冻扫描电子显微镜观察木本植物的木质部水分分布
- DOI:
10.3791/59154 - 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
YAZAKI Kenichi;OGASA Y. Mayumi;KURODA Katsushi;UTSUMI Yasuhiro;KITIN Peter;SANO Yuzou - 通讯作者:
SANO Yuzou
UTSUMI Yasuhiro的其他文献
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{{ truncateString('UTSUMI Yasuhiro', 18)}}的其他基金
Unified comprehension of tree usage with ethnobotany and wood science in Japan
日本民族植物学和木材科学对树木利用的统一理解
- 批准号:
23580231 - 财政年份:2011
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Survey of xylem water transport pathways in Japanese trees
日本树木木质部水分运输途径的调查
- 批准号:
19780121 - 财政年份:2007
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
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