Semiclassical approximations to the coherent-state propagator for a particle in a box

dc.creatorXavier, AL
dc.creatordeAguiar, MAM
dc.date1996
dc.dateSEP
dc.date2014-12-16T11:34:08Z
dc.date2015-11-26T17:02:19Z
dc.date2014-12-16T11:34:08Z
dc.date2015-11-26T17:02:19Z
dc.date.accessioned2018-03-28T23:50:23Z
dc.date.available2018-03-28T23:50:23Z
dc.identifierPhysical Review A. American Physical Soc, v. 54, n. 3, n. 1808, n. 1819, 1996.
dc.identifier1050-2947
dc.identifierWOS:A1996VH09000015
dc.identifier10.1103/PhysRevA.54.1808
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79872
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/79872
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79872
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1278889
dc.descriptionWe compute the semiclassical coherent-state propagator for a particle moving in a one-dimensional box. In this semiclassical approach complex trajectories are stationary paths of the propagator's asymptotic expansion and play a fundamental role. A second semiclassical approximation is also introduced, which makes use of real trajectories only. An application to a seemingly simple system, the infinite well, is carried out completely for the diagonal elements, and a comparison is made among the three possible methods, those based on complex and real trajectories and the 'exact case' that is determined by decomposing the propagator into its eigenstates.
dc.description54
dc.description3
dc.description1808
dc.description1819
dc.languageen
dc.publisherAmerican Physical Soc
dc.publisherCollege Pk
dc.publisherEUA
dc.relationPhysical Review A
dc.relationPhys. Rev. A
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectPath-integrals
dc.titleSemiclassical approximations to the coherent-state propagator for a particle in a box
dc.typeArtículos de revistas


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