Theory of decoherence due to scattering events and Lévy processes

Details Theory of decoherence due to scattering events and Lévy processes Theory of decoherence due to scattering events and Lévy processes

2005-10-17

arxiv.org/abs/quant-ph/0510127v1

Phys. Rev. Lett. 95 (2005) 230402

Physics

Quantum Physics

10 pages, revtex, no figures, to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.95.230402

A general connection between the characteristic function of a L\'evy process and loss of coherence of the statistical operator describing the center of mass degrees of freedom of a quantum system interacting through momentum transfer events with an environment is established. The relationship with microphysical models and recent experiments is considered, focusing on the recently observed transition between a dynamics described by a compound Poisson process and a Gaussian process.

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