Momentum distribution and correlation function of quasicondensates in elongated traps

Details Momentum distribution and correlation function of quasicondensates in elongated traps Momentum distribution and correlation function of quasicondensates in elongated traps

2002-11-05

arxiv.org/abs/cond-mat/0211094v4

Phys. Rev. A 67, 051602(R) (2003) .

Physics

Condensed Matter

5 pages, 2 figures; final version, references updated

Scientific paper

10.1103/PhysRevA.67.051602

We calculate the spatial correlation function and momentum distribution of a phase-fluctuating, elongated three-dimensional condensate, in a trap and in free expansion. We take the inhomogeneous density profile into account {\it{via}} a local density approximation. We find an almost Lorentzian momentum distribution, in stark contrast with a Heisenberg-limited Thomas-Fermi condensate.

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