Frictional quantum decoherence

Bruno Bellomo; Stephen M. Barnett; John Jeffers

doi:10.1088/1751-8113/40/31/019

Frictional quantum decoherence

Bruno Bellomo, Stephen M. Barnett, John Jeffers

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The dynamics associated with a measurement-based master equation for quantum Brownian motion are investigated. A scheme for obtaining time evolution from general initial conditions is derived. This is applied to analyse dissipation and decoherence in the evolution of both a Gaussian and a Schrodinger cat initial state. Dependence on the diffusive terms present in the master equation is discussed with reference to both the coordinate and momentum representations.

Original language	English
Pages (from-to)	9437-9453
Number of pages	17
Journal	Journal of Physics A: Mathematical and Theoretical
Volume	40
Issue number	31
DOIs	https://doi.org/10.1088/1751-8113/40/31/019
Publication status	Published - 3 Aug 2007

Keywords

brownian-motion
master equation
dissipation

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10.1088/1751-8113/40/31/019

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title = "Frictional quantum decoherence",

abstract = "The dynamics associated with a measurement-based master equation for quantum Brownian motion are investigated. A scheme for obtaining time evolution from general initial conditions is derived. This is applied to analyse dissipation and decoherence in the evolution of both a Gaussian and a Schrodinger cat initial state. Dependence on the diffusive terms present in the master equation is discussed with reference to both the coordinate and momentum representations.",

keywords = "brownian-motion, master equation, dissipation",

author = "Bruno Bellomo and Barnett, {Stephen M.} and John Jeffers",

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doi = "10.1088/1751-8113/40/31/019",

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T1 - Frictional quantum decoherence

AU - Bellomo, Bruno

AU - Barnett, Stephen M.

AU - Jeffers, John

PY - 2007/8/3

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N2 - The dynamics associated with a measurement-based master equation for quantum Brownian motion are investigated. A scheme for obtaining time evolution from general initial conditions is derived. This is applied to analyse dissipation and decoherence in the evolution of both a Gaussian and a Schrodinger cat initial state. Dependence on the diffusive terms present in the master equation is discussed with reference to both the coordinate and momentum representations.

AB - The dynamics associated with a measurement-based master equation for quantum Brownian motion are investigated. A scheme for obtaining time evolution from general initial conditions is derived. This is applied to analyse dissipation and decoherence in the evolution of both a Gaussian and a Schrodinger cat initial state. Dependence on the diffusive terms present in the master equation is discussed with reference to both the coordinate and momentum representations.

KW - brownian-motion

KW - master equation

KW - dissipation

U2 - 10.1088/1751-8113/40/31/019

DO - 10.1088/1751-8113/40/31/019

M3 - Article

SN - 1751-8113

VL - 40

SP - 9437

EP - 9453

JO - Journal of Physics A: Mathematical and Theoretical

JF - Journal of Physics A: Mathematical and Theoretical

IS - 31

ER -

Frictional quantum decoherence

Abstract

Keywords

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