Decoherence and quantum fluctuations

被引：94

作者：

Mohanty, P

Webb, RA

机构：

[1] Center for Superconductivity Research, Department of Physics, University of Maryland, College Park

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 20期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.55.R13452

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that the zero-point fluctuations of the intrinsic electromagnetic environment Limit the phase-coherence time in all mesoscopic systems at low temperatures. We derive this quantum-noise-limited dephasing time and its temperature dependence in the crossover to the thermal regime. Our results agree well with most experiments in one-dimensional systems.

引用

页码：13452 / 13455

页数：4

共 21 条

[1]

Altshuler B.L., 1985, ELECT ELECT INTERACT

[2]

[Anonymous], 1974, QUANTUM OPTICS

[3]

BERGMANN G, 1988, PHYS REV LETT, V60, P1986, DOI 10.1103/PhysRevLett.60.1986

[4] IRREVERSIBILITY AND GENERALIZED NOISE [J].