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Reflection of matter waves in potential structures
(KTH)ORCID-id: 0000-0002-8049-2425
Laser Physics and Quantum Optics, Royal Institute of Technology, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden. (KTH)ORCID-id: 0000-0002-8049-2425
2002 (engelsk)Inngår i: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 66, nr 5, s. 053605-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this paper the behavior of matter waves in suddenly terminated potential structures is investigated numerically. It is shown that there is no difference between a fully quantum mechanical treatment and a semiclassical one with regards to energy redistribution. For the quantum case it is demonstrated that there can be substantial reflection at the termination. The neglect of backscattering by the semiclassical method brings about major differences in the case of low kinetic energies. A simple phenomenological model is shown to partially explain the observed backscattering using dynamics of reduced dimensionality.

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2002. Vol. 66, nr 5, s. 053605-
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URN: urn:nbn:se:du-11214DOI: 10.1103/PhysRevA.66.053605ISI: 000179631900103OAI: oai:DiVA.org:du-11214DiVA, id: diva2:565609
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@2002 American Physical Society

Tilgjengelig fra: 2012-11-07 Laget: 2012-11-07 Sist oppdatert: 2017-12-07

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