Particle trapping induced by the interplay between coherence and decoherence

Sangyong Yi; Mahn Soo Choi; Sang Wook Kim

doi:10.1016/j.physleta.2009.07.017

Particle trapping induced by the interplay between coherence and decoherence

Sangyong Yi, Mahn Soo Choi, Sang Wook Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	3239-3243
Number of pages	5
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	373
Issue number	36
DOIs	https://doi.org/10.1016/j.physleta.2009.07.017
Publication status	Published - 2009 Aug 31

Keywords

Atom interferometry
Decoherence
Quantum optics

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1016/j.physleta.2009.07.017

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title = "Particle trapping induced by the interplay between coherence and decoherence",

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.",

keywords = "Atom interferometry, Decoherence, Quantum optics",

author = "Sangyong Yi and Choi, {Mahn Soo} and Kim, {Sang Wook}",

note = "Funding Information: This work was supported for two years by Pusan National University Research Grant.",

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AU - Choi, Mahn Soo

AU - Kim, Sang Wook

N1 - Funding Information: This work was supported for two years by Pusan National University Research Grant.

PY - 2009/8/31

Y1 - 2009/8/31

N2 - 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.

AB - 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.

KW - Atom interferometry

KW - Decoherence

KW - Quantum optics

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JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 36

ER -

Particle trapping induced by the interplay between coherence and decoherence

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Keywords

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