Anomalous power law of quantum reversibility for classically regular dynamics

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dc.creatorJacquod, Ph.
dc.creatorAdagideli, I.
dc.creatorBeenakker, C. W. J.
dc.date2002-06-21
dc.date2002-09-19
dc.date.accessioned2026-07-07T06:04:27Z
dc.date.available2026-07-07T06:04:27Z
dc.descriptionThe Loschmidt Echo M(t) (defined as the squared overlap of wave packets evolving with two slightly different Hamiltonians) is a measure of quantum reversibility. We investigate its behavior for classically quasi-integrable systems. A dominant regime emerges where M(t) ~ t^{-alpha} with alpha=3d/2 depending solely on the dimension d of the system. This power law decay is faster than the result ~ t^{-d} for the decay of classical phase space densities.
dc.identifierhttps://arxiv.org/abs/quant-ph/0206160
dc.identifierhttp://arxiv.org/abs/quant-ph/0206160
dc.identifierEurophys. Lett. 61, 729-735 (2003)
dc.identifierdoi:10.1209/epl/i2003-00289-y
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/90306
dc.subjectQuantum Physics
dc.subjectMesoscale and Nanoscale Physics
dc.subjectChaotic Dynamics
dc.titleAnomalous power law of quantum reversibility for classically regular dynamics
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