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Particle trapping induced by the interplay between coherence and decoherence
- Authors
- Yi, Sangyong; Choi, Mahn-Soo; Kim, Sang Wook
- Issue Date
- 31-8월-2009
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Decoherence; Atom interferometry; Quantum optics
- Citation
- PHYSICS LETTERS A, v.373, no.36, pp.3239 - 3243
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICS LETTERS A
- Volume
- 373
- Number
- 36
- Start Page
- 3239
- End Page
- 3243
- ISSN
- 0375-9601
- Abstract
- We propose a novel scheme to trap a particle based on a delicate interplay between coherence and decoherence. If the decoherence occurs as a particle is located in the scattering region and subsequently the appropriate destructive interference takes place. the particle can be trapped in the scattering area. We consider two possible experimental realizations of such trapping: a ring attached to a single lead and a ring attached to two leads. Our scheme has nothing to do with a quasi-bound state of the system, but has a close analogy with the weak localization phenomena in disordered conductors. (c) 2009 Elsevier B.V. All rights reserved.
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