Edge transport in 2D cold atom optical lattices.
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 the Chern number using edge currents of a topologically ordered optical lattice insulator.
Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
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Scarola
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Das Sarma