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Approaching the Heisenberg limit in an atom laser

Jeppesen, M; Dugue, J; Dennis, Graham; Johnsson, Mattias; Figl, Cristina; Robins, N.P; Close, John


We present experimental and theoretical results showing the improved beam quality and reduced divergence of an atom laser produced by an optical Raman transition, compared to one produced by an rf transition. We show that Raman outcoupling can eliminate the diverging lens effect that the condensate has on the outcoupled atoms. This substantially improves the beam quality of the atom laser, and the improvement may be greater than a factor of 10 for experiments with tight trapping potentials....[Show more]

CollectionsANU Research Publications
Date published: 2008-06-19
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.77.063618


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