Momentum distribution and correlation function of quasicondensates in elongated traps
arXiv:cond-mat/0211094 · doi:10.1103/PhysRevA.67.051602
Abstract
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.
arXiv comment5 pages, 2 figures; final version, references updated
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