Local and spatially extended sub-Poisson atom number fluctuations in optical lattices
arXiv:1008.4603 · doi:10.1103/PhysRevA.84.011609
Abstract
We demonstrate that ultracold interacting bosonic atoms in an optical lattice show sub-Poissonian on-site and inter-site atom number fluctuations. The experimental observations agree with numerical predictions of the truncated Wigner approximation. The correlations persist in the presence of multi-mode atom dynamics and even over large spatially extended samples involving several sites and large populations.
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