RT Journal Article
T1 Enhanced observability of quantum postexponential decay using distant detectors
A1 Torrontegui Muñoz, Erik
A1 Muga, Juan Gonzalo
A1 Martorell, Joan
A1 Sprung, Donald W. L.
AB We 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.
PB American Physical Society (APS)
SN 1050-2947
SN 1094-1622 (online)
YR 2009
FD 2009-07-10
LK https://hdl.handle.net/10016/32315
UL https://hdl.handle.net/10016/32315
LA eng
NO Funding 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).
DS e-Archivo
RD 1 sept. 2024