Suppression of collisional decoherence

Details Suppression of collisional decoherence Suppression of collisional decoherence

2009-05-03

arxiv.org/abs/0905.0286v2

Physics

Quantum Physics

4 pages, 5 figures, typos corrected and a few minor changes

Scientific paper

We employ a continuous dynamical decoupling scheme to suppress the
decoherence induced by elastic collisions of cold atoms. Using a continuous
echo pulse we achieve a thirty-fold increase in the coherence time of Rb87
atoms trapped in a dipole trap. Coherence times of more than 100ms are
demonstrated for an ensemble with an optical depth of 120.

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