Interference of a variable number of coherent atomic sources

Details Interference of a variable number of coherent atomic sources Interference of a variable number of coherent atomic sources

2005-05-31

arxiv.org/abs/cond-mat/0505768v1

Phys. Rev. A 72, 051601(R) (2005)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevA.72.051601

We have studied the interference of a variable number of independently created $m_F=0$ microcondensates in a CO$_{2}$-laser optical lattice. The observed average interference contrast decreases with condensate number N. Our experimental results agree well with the predictions of a random walk model. While the exact result can be given in terms of Kluyver's formula, for a large number of sources a $1/\sqrt{N}$ scaling of the average fringe contrast is obtained. This scaling law is found to be of more general applicability when quantifying the decay of coherence of an ensemble with N independently phased sources.

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