Manipulating the superfluid - Mott insulator transition of a Bose - Einstein condensate in an amplitude - modulated optical lattice

Details Manipulating the superfluid - Mott insulator transition of a Bose - Einstein condensate in an amplitude - modulated optical lattice Manipulating the superfluid - Mott insulator transition of a Bose - Einstein condensate in an amplitude - modulated optical lattice

2003-11-25

arxiv.org/abs/cond-mat/0311589v1

Physics

Condensed Matter

10 pages, no figures

Scientific paper

The superfluid - Mott insulator transition in a BEC confined in an amplitude - modulated optical lattice can be manipulated by the modulation strength. Two standing laser waves of main and sideband frequencies of an optical lattice induce a Raman transition; due to resonant Raman driving the critical value of the transition parameter depends on the modulation strength and the detuning from resonance and can be tuned to a given value. It is shown that there is an interval of the initial MI phase, in which a modulation switches the MI phase to the SF phase.

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