Localization of atomic ensembles via superfluorescence

Details Localization of atomic ensembles via superfluorescence Localization of atomic ensembles via superfluorescence

2006-11-14

arxiv.org/abs/quant-ph/0611148v1

Phys. Rev. A 75, 033801 (2007)

Physics

Quantum Physics

7 pages, 6 figures

Scientific paper

10.1103/PhysRevA.75.033801

The sub-wavelength localization of an ensemble of atoms concentrated to a small volume in space is investigated. The localization relies on the interaction of the ensemble with a standing wave laser field. The light scattered in the interaction of standing wave field and atom ensemble depends on the position of the ensemble relative to the standing wave nodes. This relation can be described by a fluorescence intensity profile, which depends on the standing wave field parameters, the ensemble properties, and which is modified due to collective effects in the ensemble of nearby particles. We demonstrate that the intensity profile can be tailored to suit different localization setups. Finally, we apply these results to two localization schemes. First, we show how to localize an ensemble fixed at a certain position in the standing wave field. Second, we discuss localization of an ensemble passing through the standing wave field.

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