Mesoscopic capacitors: A statistical analysis

被引：107

作者：

Gopar, VA ^{[1
]}

Mello, PA ^{[1
]}

Buttiker, M ^{[1
]}

机构：

[1] UNIV GENEVA, DEPT PHYS THEOR, CH-1211 GENEVA 4, SWITZERLAND

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.77.3005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The capacitance of mesoscopic samples depends on their geometry and physical properties, described in terms of characteristic times scales. The resulting ac admittance shows sample to sample fluctuations. Their distribution is studied here--through a random-matrix model--for a chaotic cavity capacitively coupled to a backgate: it is observed from the distribution of scattering time delays for the cavity, which is found analytically for the orthogonal, unitary, and symplectic universality classes, one mode in the lead connecting the cavity to the reservoir and no direct scattering. The results agree with numerical simulations.

引用

页码：3005 / 3008

页数：4

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