Fock-state dynamics in Raman photoassociation of Bose-Einstein condensates

Olsen, M., Bradley, A. S. and Cavalcanti, S. B. (2004) Fock-state dynamics in Raman photoassociation of Bose-Einstein condensates. Physical Review A, 70 3: . doi:10.1103/PhysRevA.70.033611

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Author Olsen, M.
Bradley, A. S.
Cavalcanti, S. B.
Title Fock-state dynamics in Raman photoassociation of Bose-Einstein condensates
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2004-09
Sub-type Article (original research)
DOI 10.1103/PhysRevA.70.033611
Open Access Status File (Publisher version)
Volume 70
Issue 3
Total pages 5
Editor B. Crasemann
Place of publication Washington D.C
Publisher American Physical Society
Collection year 2004
Language eng
Subject C1
240301 Atomic and Molecular Physics
780102 Physical sciences
Abstract By stochastic modeling of the process of Raman photoassociation of Bose-Einstein condensates, we show that, the farther the initial quantum state is from a coherent state, the farther the one-dimensional predictions are from those of the commonly used zero-dimensional approach. We compare the dynamics of condensates, initially in different quantum states, finding that, even when the quantum prediction for an initial coherent state is relatively close to the Gross-Pitaevskii prediction, an initial Fock state gives qualitatively different predictions. We also show that this difference is not present in a single-mode type of model, but that the quantum statistics assume a more important role as the dimensionality of the model is increased. This contrasting behavior in different dimensions, well known with critical phenomena in statistical mechanics, makes itself plainly visible here in a mesoscopic system and is a strong demonstration of the need to consider physically realistic models of interacting condensates.
Q-Index Code C1
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Created: Wed, 15 Aug 2007, 04:39:10 EST