Frequency scales for current statistics of mesoscopic conductors -: art. no. 176804

被引：42
|
作者：
Nagaev, KE
Pilgram, S
Büttiker, M
机构：
[1] Russian Acad Sci, Inst Radioengn & Elect, Moscow 125009, Russia
[2] Univ Geneva, Dept Phys Theor, CH-1211 Geneva 4, Switzerland
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 17期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1103/PhysRevLett.92.176804
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We calculate the third cumulant of current in a chaotic cavity with contacts of arbitrary transparency as a function of frequency. Its frequency dependence drastically differs from that of the conventional noise. In addition to a dispersion at the inverse RC time characteristic of charge relaxation, it has a low-frequency dispersion at the inverse dwell time of electrons in the cavity. This effect is suppressed if both contacts have either large or small transparencies.
引用
收藏
页码：176804 / 1
页数：4
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