Mean field dynamics of superfluid-insulator phase transition in a gas of ultra cold atoms
arXiv:cond-mat/0406186 · doi:10.1103/PhysRevA.71.043601
Abstract
A large scale dynamical simulation of the superfluid to Mott insulator transition in the gas of ultra cold atoms placed in an optical lattice is performed using the time dependent Gutzwiller mean field approach. This approximate treatment allows us to take into account most of the details of the recent experiment [Nature 415, 39 (2002)] where by changing the depth of the lattice potential an adiabatic transition from a superfluid to a Mott insulator state has been reported. Our simulations reveal a significant excitation of the system with a transition to insulator in restricted regions of the trap.
arXiv commentfinal version, correct Fig.7 (the published version contains wrong fig.7 by mistake)
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