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Enhanced observability of quantum postexponential decay using distant detectors

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dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Materiales Nano-Estructurados y Multifuncionaleses
dc.contributor.authorTorrontegui Muñoz, Erik
dc.contributor.authorMuga, Juan Gonzalo
dc.contributor.authorMartorell, Joan
dc.contributor.authorSprung, Donald W. L.
dc.contributor.funderMinisterio de Educación y Ciencia (España)es
dc.date.accessioned2021-04-08T12:33:48Z
dc.date.available2021-04-08T12:33:48Z
dc.date.issued2009-07-10
dc.description.abstractWe study the elusive transition from exponential to postexponential (algebraic) decay of the probability density of a quantum particle emitted by an exponentially decaying source in one dimension. The main finding is that the probability density at the transition time, and thus its observability, increases with the distance of the detector from the source up to a critical distance beyond which exponential decay is no longer observed. Solvable models provide explicit expressions for the dependence of the transition on resonance and observational parameters, facilitating the choice of optimal conditions.en
dc.description.sponsorshipFunding by the Basque Country University UPV-EHU (Grant No. GIU07/40), the Ministerio de Educación y Ciencia (Grants No. FIS2006-10268-C03-01 and No. C03-02), and NSERC-Canada (Discovery Grant No. RGPIN-3198, DWLS. E.T.) acknowledges financial support from the Basque Government (Grant No. BFI08.151).en
dc.format.extent8es
dc.identifier.bibliographicCitationPhysical review A, 80(1), 012703, July 2009, 8 pp.en
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevA.80.012703
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622 (online)
dc.identifier.publicationfirstpage1es
dc.identifier.publicationissue1, 012703es
dc.identifier.publicationlastpage8es
dc.identifier.publicationtitlePHYSICAL REVIEW Aen
dc.identifier.publicationvolume80es
dc.identifier.urihttps://hdl.handle.net/10016/32315
dc.identifier.uxxiAR/0000026503
dc.language.isoenges
dc.publisherAmerican Physical Society (APS)en
dc.relation.projectIDGobierno de España. FIS2006-10268-C03-01es
dc.relation.projectIDGobierno de España. C03-02es
dc.rights© 2009 American Physical Societyen
dc.rights.accessRightsopen accessen
dc.subject.ecienciaFísicaes
dc.subject.otherExponential decayen
dc.subject.otherTunneling timeen
dc.subject.otherDiffractionen
dc.subject.otherSpaceen
dc.titleEnhanced observability of quantum postexponential decay using distant detectorsen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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