Role of interactions in time-of-flight expansion of atomic clouds from optical lattices

Details Role of interactions in time-of-flight expansion of atomic clouds from optical lattices Role of interactions in time-of-flight expansion of atomic clouds from optical lattices

2010-06-10

arxiv.org/abs/1006.2042v2

Phys. Rev. A 82, 023618 (2010)

Physics

Condensed Matter

Quantum Gases

6 pages, 3 figures

Scientific paper

10.1103/PhysRevA.82.023618

We calculate the effect of interactions on the expansion of ultracold atoms
from a single site of an optical lattice. We use these results to predict how
interactions influence the interference pattern observed in a time of flight
experiment. We find that for typical interaction strengths their influence is
negligible, yet that they reduce visibility near a scattering resonance.

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