Imaging the phase of an evolving Bose-Einstein condensate wavefunction

Details Imaging the phase of an evolving Bose-Einstein condensate wavefunction Imaging the phase of an evolving Bose-Einstein condensate wavefunction

2000-05-18

arxiv.org/abs/cond-mat/0005303v2

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevLett.85.2040

We demonstrate a spatially resolved autocorrelation measurement with a Bose-Einstein condensate (BEC) and measure the evolution of the spatial profile of its quantum mechanical phase. Upon release of the BEC from the magnetic trap, its phase develops a form that we measure to be quadratic in the spatial coordinate. Our experiments also reveal the effects of the repulsive interaction between two overlapping BEC wavepackets and we measure the small momentum they impart to each other.

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