Correlated Gaussian method for dilute bosonic systems

Details Correlated Gaussian method for dilute bosonic systems Correlated Gaussian method for dilute bosonic systems

2005-04-20

arxiv.org/abs/physics/0504135v1

AIP Conference Proceedings 777, 12 (2005)

Physics

Atomic Physics

9 pages, Workshop on Nuclei and Mesoscopic Physics, NSCL MSU, 2004

Scientific paper

10.1063/1.1996868

The weakly interacting trapped Bose gases have been customarily described using the mean-field approximation in the form of the Gross-Pitaevskii equation. The mean-field approximation, however, has certain limitations, in particular it can not describe correlations between particles. We introduce here an alternative variational approach, based on the correlated Gaussian method, which in its simplest form is as fast and simple as the mean-field approximation, but which allows successive improvements of the trial wave-function by including correlations between particles.

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