Collapse and revival dynamics of number-squeezed superfluids of ultracold atoms in optical lattices
Collapse and revival dynamics of number-squeezed superfluids of ultracold atoms in optical lattices
Recent experiments have shown a remarkable number of collapse-and-revival oscillations of the matter-wave coherence of ultracold atoms in optical lattices [Will et al., Nature 465, 197 (2010)]. Using a mean-field approximation to the Bose-Hubbard model, we show that the visibility of collapse-and-revival interference patterns reveal number squeezing of the initial …