Edge Transport in 2D Cold Atom Optical Lattices

Details Edge Transport in 2D Cold Atom Optical Lattices Edge Transport in 2D Cold Atom Optical Lattices

2006-12-12

arxiv.org/abs/cond-mat/0612302v2

Phys. Rev. Lett. 98, 210403 (2007)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevLett.98.210403

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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