Quantum noise in mesoscopic systems

被引：0
|
作者：
Belzig, W [1 ]
机构：
[1] Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland
来源：
ADVANCES IN SOLID STATE PHYSICS 45 | 2005年 / 45卷
关键词：
D O I：
10.1007/11423256_10
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Full counting statistics aims at a complete characterization of the distribution of measurement outcomes. In this article I will demonstrate how this concept allows to investigate quantum correlations in a variety of mesoscopic systems. Three examples will be discussed: a) In analogy to Schottky's work on the current fluctuations in a vacuum diode, shot noise in superconducting contacts allows to identify the nature of the elementary charge transfer events. b) The Coulomb interaction in complex quantum dots or molecules leads to a strongly correlated current statistics. c) The density fluctuation statistics in a fermionic quantum gas reflects the crossover from a superfluid state to a molecular Bose-Einstein condensate.
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收藏
页码：123 / 134
页数：12
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