Probing the Superfluid - Mott Insulating Shell Structure of Cold Atoms by Parametric Excitations

Details Probing the Superfluid - Mott Insulating Shell Structure of Cold Atoms by Parametric Excitations Probing the Superfluid - Mott Insulating Shell Structure of Cold Atoms by Parametric Excitations

2006-07-16

arxiv.org/abs/cond-mat/0607401v1

Phys. Rev. A 75, 063612 (2007)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 1 figure

Scientific paper

10.1103/PhysRevA.75.063612

We study the effect of parametric excitations on systems of confined ultracold Bose atoms in periodically modulated optical lattices. In the regime where Mott insulating and Superfluid domains coexist, we show that the dependence of the energy absorbed by the system on the frequency of the modulation serves as an experimental probe for the existence and properties of Mott insulating-Superfluid domains.

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