Fluctuation theorem for a double quantum dot coupled to a point-contact electrometer

被引：0

作者：

Golubev, D. ^{[1
]}

Utsumi, Y. ^{[2
]}

Marthaler, M. ^{[3
]}

Schoen, G. ^{[1
,3
]}

机构：

[1] Karlsruhe Inst Technol, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[2] Mie Univ, Fac Engn, Dept Phys, Tsu, Mie 5148507, Japan

[3] Karlsruhe Inst Technol, Inst Festkorperphys Theort, D-76128 Karlsruhe, Germany

来源：

PHYSICS OF SEMICONDUCTORS | 2013年 / 1566卷

关键词：

Fluctuation theorem; Full counting statistics; Real-time electron counting;

D O I：

10.1063/1.4848385

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Motivated by recent experiments on the real-time single-electron counting through a semiconductor GaAs double quantum dot (DQD) by a nearby quanturn point contact ((PC), we develop the full-counting statistics of coupled DQD and QPC system. By utilizing the time-scale separation between the dynamics of DQD and QPC, we derive the modified master equation with tunneling rates depending on the counting fields, which fulfill the detailed fluctuation theorem. Furthermore, we derive universal relations between the non-linear corrections to the current and noise, which can be verified in experiments.

引用

页码：261 / +

页数：2

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