title: Quantum magnetism with multicomponent dipolar molecules in an optical lattice.
abstract: We consider bosonic dipolar molecules in an optical lattice prepared in a mixture of different rotational states. The 1/R(3) interaction between molecules for this system is produced by exchanging a quantum of angular momentum between two molecules. We show that the Mott states of such systems have a large variety of quantum phases characterized by dipolar orderings including a state with an ordering wave vector that can be changed by tilting the lattice. As the Mott insulating phase is melted, we also describe several exotic superfluid phases that will occur.
authors.affiliation: Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.
authors.forename: Ryan
authors.initials: R
authors.lastname: Barnett
authors.forename: Dmitry
authors.initials: D
authors.lastname: Petrov
authors.forename: Mikhail
authors.initials: M
authors.lastname: Lukin
authors.forename: Eugene
authors.initials: E
authors.lastname: Demler