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Atom-atom correlations in colliding Bose-Einstein condensates
ARC Centre of Excellence for Quantum-Atom Optics, School of Physical Sciences, University of Queensland, Brisbane, Australia.ORCID iD: 0000-0002-2630-7479
ARC Centre of Excellence for Quantum-Atom Optics, School of Physical Sciences, University of Queensland, Brisbane, Australia.
2009 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 79, no 2, article id 021606Article in journal (Refereed) Published
Abstract [en]

We analyze atom-atom correlations in the s -wave scattering halo of two colliding condensates. By developing a simple perturbative approach, we obtain explicit analytic results for the collinear (CL) and back-to-back (BB) correlations corresponding to realistic density profiles of the colliding condensates with interactions. The results in the short-time limit are in agreement with the first-principles simulations using the positive- P representation and provide analytic insights into the experimental observations of Perrin [Phys. Rev. Lett. 99, 150405 (2007)]. For long collision durations, we predict that the BB correlation becomes broader than the CL correlation.

Place, publisher, year, edition, pages
American Physical Society, 2009. Vol. 79, no 2, article id 021606
Keywords [en]
atom-atom collisions; Bose-Einstein condensation; sodium
National Category
Atom and Molecular Physics and Optics Condensed Matter Physics Computational Mathematics
Identifiers
URN: urn:nbn:se:oru:diva-65568DOI: 10.1103/PhysRevA.79.021606ISI: 000263815000016Scopus ID: 2-s2.0-61849093219OAI: oai:DiVA.org:oru-65568DiVA, id: diva2:1188678
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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