DECOHERENCE IN OPEN QUANTUM SYSTEMS

Аурелиан Исар

Published Jan 1, 2005• 1 citation

Abstract

In the framework of the Lindblad theory for open quantum systems we determine the degree of quantum decoherence of a harmonic oscillator interacting with a thermal bath. 1.

Related papers

QUANTUM DECOHERENCE IN THE THEORY OF OPEN SYSTEMS

Аурелиан Исар

In the framework of the Lindblad theory for open quantum systems, we determine the degree of quantum decoherence of a harmonic oscillator interacting with a thermal bath. It is found that the system manifests a quantum decoherence which is more and more significant in time. We calculate also the decoherence time scale and analyze the transition from quantum to classical behaviour of the considered system. 1

Aug 4, 20130 citations

Quantum decoherence in the theory of open systems

A. Isar

Within the framework of the Lindblad theory for open quantum systems, we determine the degree of quantum decoherence of a harmonic oscillator interacting with a thermal bath. It is found that the system manifests a quantum decoherence which is more and more significant in time. We also calculate the decoherence time scale and analyze the transition from quantum to classical behavior of the considered system.

arXiv:0704.3415Physics of Particles and Nuclei LettersMar 1, 20070 citations

Quantum decoherence of the damped harmonic oscillator

Аурелиан Исар

In the framework of the Lindblad theory for open quantum systems, we determine the degree of quantum decoherence of a harmonic oscillator interacting with a thermal bath. It is found that the system manifests a quantum decoherence which is more and more significant in time. We also calculate the decoherence time and show that it has the same scale as the time after which thermal fluctuations become comparable with quantum fluctuations.

arXiv:quant-ph/0606222Optics and SpectroscopyAug 1, 20072 citations

Quantum decoherence in open systems

Аурелиан Исар

In the framework of the theory for open quantum systems, we determine the degree of quantum decoherence of a harmonic oscillator interacting with a thermal bath. It is found that the system manifests a quantum decoherence which is more and more significant in time. We also calculate the decoherence rime, which has the same scale as the time after which thermal fluctuations become comparable with quantum fluctuations.

AIP conference proceedingsJan 1, 20070 citations

Quantum decoherence and classical correlations in open systems

Аурелиан Исар

In the framework of the Lindblad theory for open quantum systems we determine the degree of quantum decoherence and classical correlations of a harmonic oscillator interacting with a thermal bath. The transition from quantum to classical behaviour of the considered system is analyzed and it is shown that the classicality takes place during a finite interval of time. We calculate also the decoherence time and show that it has the same scale as the time after which thermal fluctuations become comparable with quantum fluctuations.

arXiv:0712.2427Dec 14, 20070 citations

Decoherence in quantum open systems revisited

Robert Alicki

The following statements belonging to the folklore of the theory of environmental decoherence are shown to be incorrect: 1) linear coupling to harmonic oscillator bath is a universal model of decoherence, 2) chaotic environments are more efficient decoherers.

arXiv:quant-ph/0205173May 28, 20023 citations