Frictional quantum decoherence

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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 analyze dissipation and decoherence in the evolution of both a Gaussian and a Schrödinger cat initial state. Dependence on the diffusive terms present in the master equation is discussed with reference to both the coordinate and momentum representations.
18 pages, 7 figures

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/134696

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0707.2912
 http://arxiv.org/abs/0707.2912
 J. Phys. A: Math. Theor. 40 (2007) 9437-9453
 doi:10.1088/1751-8113/40/31/019

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arXiv