Document Type

Article

Publication Date

11-14-2008

Publication Title

Physical Review A - Atomic, Molecular, and Optical Physics

Abstract

We investigate the static and dynamic properties of bosonic lattice systems in which condensed and Mott insulating phases coexist due to the presence of a spatially varying potential. We formulate a description of these inhomogeneous systems and calculate the bulk energy at and near equilibrium. We derive the explicit form of the Josephson coupling between disjoint superfluid regions separated by Mott insulating regions. We obtain detailed estimates for the case of alternating superfluid and Mott insulating spherical shells in a radially symmetric parabolically confined cold atom system.

Volume

78

Issue

5

DOI

10.1103/PhysRevA.78.053620

ISSN

10502947

Rights

©2008 American Physical Society

Comments

Archived as published.

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