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Edge Transport in 2D Cold Atom Optical Lattices

V. W. Scarola, S. Das Sarma

cond-mat.otherarXiv:cond-mat/0612302

Abstract

We theoretically study the observable response of edge currents in two dimensional cold atom optical lattices. As an example we use Gutzwiller mean-field theory to relate persistent edge currents surrounding a Mott insulator in a slowly rotating trapped Bose-Hubbard system to time of flight measurements. We briefly discuss an application, the detection of Chern number using edge currents of a topologically ordered optical lattice insulator.

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