Dephasing in a quantum dot due to coupling with a quantum point contact

被引：125

作者：

Levinson, Y

机构：

[1] Weizmann Institute of Science

来源：

EUROPHYSICS LETTERS | 1997年 / 39卷 / 03期

关键词：

D O I：

10.1209/epl/i1997-00351-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider the dephasing of an one-electron state in a quantum dot due to charge fluctuations in a biased quantum point contact coupled to the dot capacitively. The contribution to the dephasing rate due to the bias depends on temperature and bias in the same way as shot-noise in the point contact at zero frequency, but do not follow the \t\(2)(1(4)- \t\(2)) suppression.

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页码：299 / 304

页数：6

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