Theory of decoherence in a matter wave Talbot-Lau interferometer

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dc.creatorHornberger, Klaus
dc.creatorSipe, John E.
dc.creatorArndt, Markus
dc.date2004-07-29
dc.date2004-11-18
dc.date.accessioned2026-07-07T06:10:28Z
dc.date.available2026-07-07T06:10:28Z
dc.descriptionWe present a theoretical framework to describe the effects of decoherence on matter waves in Talbot-Lau interferometry. Using a Wigner description of the stationary beam the loss of interference contrast can be calculated in closed form. The formulation includes both the decohering coupling to the environment and the coherent interaction with the grating walls. It facilitates the quantitative distinction of genuine quantum interference from the expectations of classical mechanics. We provide realistic microscopic descriptions of the experimentally relevant interactions in terms of the bulk properties of the particles and show that the treatment is equivalent to solving the corresponding master equation in paraxial approximation.
dc.description20 pages, 4 figures (minor corrections; now in two-column format)
dc.identifierhttps://arxiv.org/abs/quant-ph/0407245
dc.identifierhttp://arxiv.org/abs/quant-ph/0407245
dc.identifierPhys. Rev. A 70, 053608 (2004)
dc.identifierdoi:10.1103/PhysRevA.70.053608
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/92264
dc.subjectQuantum Physics
dc.titleTheory of decoherence in a matter wave Talbot-Lau interferometer
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