Relativistic echo dynamics and the stability of a beam of Landau electrons

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dc.creatorSadurni, Emerson
dc.creatorSeligman, Thomas H.
dc.date2008-01-09
dc.date2008-02-27
dc.date.accessioned2026-07-07T11:14:02Z
dc.date.available2026-07-07T11:14:02Z
dc.descriptionWe extend the concepts of echo dynamics and fidelity decay to relativistic quantum mechanics, specifically in the context of Klein-Gordon and Dirac equations under external electromagnetic fields. In both cases we define similar expressions for the fidelity amplitude under perturbations of these fields, and a covariant version of the echo operator. Transformation properties under the Lorentz group are established. An alternate expression for fidelity is given in the Dirac case in terms of a 4-current. As an application we study a beam of Landau electrons perturbed by field inhomogeneities.
dc.description8 pages, no figures
dc.identifierhttps://arxiv.org/abs/0801.1489
dc.identifierhttp://arxiv.org/abs/0801.1489
dc.identifierJ.Phys.A41:102002,2008
dc.identifierdoi:10.1088/1751-8113/41/10/102002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191927
dc.subjectQuantum Physics
dc.subjectHigh Energy Physics - Theory
dc.titleRelativistic echo dynamics and the stability of a beam of Landau electrons
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