Frictional quantum decoherence

Details Frictional quantum decoherence Frictional quantum decoherence

2007-07-19

arxiv.org/abs/0707.2912v1

J. Phys. A: Math. Theor. 40 (2007) 9437-9453

Physics

Quantum Physics

18 pages, 7 figures

Scientific paper

10.1088/1751-8113/40/31/019

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 Schr\"{o}dinger cat initial state. Dependence on the diffusive terms present in the master equation is discussed with reference to both the coordinate and momentum representations.

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