### Session N2: Optical Lattices

10:30 AM–12:30 PM, Thursday, June 7, 2012
Room: Grand Ballroom GF

Chair: Ken O'Hara, Penn State University

Abstract ID: BAPS.2012.DAMOP.N2.2

### Abstract: N2.00002 : Dual Mott Insulator in a Spin-Dependent Optical Lattice

10:42 AM–10:54 AM

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#### Authors:

Hirokazu Miyake
(MIT)

Georgios Siviloglou
(MIT)

Colin Kennedy
(MIT)

David Weld
(University of California, Santa Barbara)

David Pritchard
(MIT)

Wolfgang Ketterle
(MIT)

A major goal of the field of ultracold atoms is the realization of quantum magnetism. It has been theoretically proposed that for a two-component system in an optical lattice, one can emulate the Heisenberg Hamiltonian and observe phases such as XY-ferromagnetism and anti-ferromagnetism by controlling the spin-exchange constants. Towards this goal, we have developed a spin-dependent optical lattice for bosonic $^{87}$Rb atoms that allows us to tune the inter-species interaction energy. In particular, we have studied its effect on the superfluid-to-Mott insulator transition.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2012.DAMOP.N2.2