Probing States in the Mott Insulator Regime
arXiv:cond-mat/0208208 · doi:10.1103/PhysRevLett.90.150401
Abstract
We propose a method to probe states in the Mott insulator regime produced from a condensate in an optical lattice. We consider a system in which we create time-dependent number fluctuations in a given site by turning off the atomic interactions and lowering the potential barriers on a nearly pure Mott state to allow the atoms to tunnel between sites. We calculate the expected interference pattern and number fluctuations from such a system and show that one can potentially observe a deviation from a pure Mott state. We also discuss a method in which to detect these number fluctuations using time-of-flight imaging.
4 pages, 3 figures. Send correspondence to [email protected]
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Cited by in corpus (15)
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