Atomic quantum simulator for lattice gauge theories and ring exchange models

Details Atomic quantum simulator for lattice gauge theories and ring exchange models Atomic quantum simulator for lattice gauge theories and ring exchange models

2005-03-10

arxiv.org/abs/cond-mat/0503254v2

Phys.Rev.Lett. 95 (2005) 040402

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.95.040402

We present the design of a ring exchange interaction in cold atomic gases subjected to an optical lattice using well understood tools for manipulating and controlling such gases. The strength of this interaction can be tuned independently and describes the correlated hopping of two bosons. We discuss a setup where this coupling term may allows for the realization and observation of exotic quantum phases, including a deconfined insulator described by the Coulomb phase of a three-dimensional U(1) lattice gauge theory.

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