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Role of spatial inhomogeneity in dissociation of trapped molecular condensates
ARC Centre of Excellence for Quantum-Atom Optics, School of Mathematics and Physics, University of Queensland, Brisbane, Australia.ORCID iD: 0000-0002-2630-7479
ARC Centre of Excellence for Quantum-Atom Optics, School of Mathematics and Physics, University of Queensland, Brisbane, Australia.
2010 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 82, no 1, article id 013641Article in journal (Refereed) Published
Abstract [en]

We theoretically analyze dissociation of a harmonically trapped Bose-Einstein condensate of molecular dimers and examine how the spatial inhomogeneity of the molecular condensate affects the conversion dynamics and the atom-atom pair correlations in the short-time limit. Both fermionic and bosonic statistics of the constituent atoms are considered. Using the undepleted molecular-field approximation, we obtain explicit analytic results for the asymptotic behavior of the second-order correlation functions and for the relative number squeezing between the dissociated atoms in one, two, and three spatial dimensions. Comparison with the numerical results shows that the analytic approach employed here captures the main underlying physics and provides useful insights into the dynamics of dissociation for conversion efficiencies up to 10%. The results show explicitly how the strength of atom-atom correlations and relative number squeezing degrade with the reduction of the size of the molecular condensate.

Place, publisher, year, edition, pages
American Physical Society, 2010. Vol. 82, no 1, article id 013641
National Category
Condensed Matter Physics Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:oru:diva-65566DOI: 10.1103/PhysRevA.82.013641ISI: 000280450600007Scopus ID: 2-s2.0-77955115420OAI: oai:DiVA.org:oru-65566DiVA, id: diva2:1188673
Note

Funding Agencies:

Australian Research Council  

IPRS/UQILAS  

Solander Program at UQ  

Available from: 2018-03-08 Created: 2018-03-08 Last updated: 2018-03-15Bibliographically approved

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Ögren, Magnus
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CiteExportLink to record
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