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Atom-atom correlations in colliding Bose-Einstein condensates

Ögren, Magnus LU and Kheruntsyan, K. V. (2009) In Physical Review A 79(2).
Abstract
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 et al. [Phys. Rev. Lett. 99, 150405 (2007)]. For long collision durations, we predict that the BB correlation becomes broader than the CL correlation.
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type
Contribution to journal
publication status
published
subject
keywords
atom-atom collisions, sodium, Bose-Einstein condensation
in
Physical Review A
volume
79
issue
2
article number
021606
publisher
American Physical Society
external identifiers
  • scopus:61849093219
DOI
10.1103/PhysRevA.79.021606
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
3e888ec6-53d1-4470-9832-e70d77e5dd46 (old id 1391260)
date added to LUP
2016-04-04 11:03:47
date last changed
2021-04-27 04:57:40
@article{3e888ec6-53d1-4470-9832-e70d77e5dd46,
  abstract     = {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 et al. [Phys. Rev. Lett. 99, 150405 (2007)]. For long collision durations, we predict that the BB correlation becomes broader than the CL correlation.},
  author       = {Ögren, Magnus and Kheruntsyan, K. V.},
  language     = {eng},
  number       = {2},
  publisher    = {American Physical Society},
  series       = {Physical Review A},
  title        = {Atom-atom correlations in colliding Bose-Einstein condensates},
  url          = {http://dx.doi.org/10.1103/PhysRevA.79.021606},
  doi          = {10.1103/PhysRevA.79.021606},
  volume       = {79},
  year         = {2009},
}