Experimental advances on cooling, trapping, manipulating and loading ultra-cold ground state molecules in an optical lattice have opened the door for the exploration of quantum magnetism and the observation of complex quantum dynamics. In this talk I will discuss recent developments towards the implementation of controllable spin lattice models in polar molecules with the spin degrees of freedom encoded in rotational states. The spin-spin couplings, generated by direct dipolar interactions, are long range and anisotropic, can be fully controlled by DC electromagnetic fields and microwaves and can even made directionally-dependent. I will present our theoretical and experimental progress at JILA on the observation of exchange interactions using Ramsey spectroscopy in an array of pinned molecules in a lattice. I will also discuss how dipolar interactions, in two-dimensional ultracold polar molecule gases, can generate an effective spin-orbit coupling, which manifest in the dynamics of the spin density profile, spin currents, and spin-coherences as chiral quasiparticle excitations that carry a non-trivial Berry phase.
Ana Maria Rey received her Ph.D. from University of Maryland in 2004.
Her research on ultra-cold bosonic atoms in optical lattices was done in a combined program between the University of Maryland and NIST, Gaithersburg. For this work, she received the 2005 DAMOP Thesis Prize. She followed her Ph.D. studies with a postdoctoral fellowship at the Institute for Theoretical Atomic, Molecular, and Optical Physics at the Harvard-Smithsonian Center for Astrophysics. In the fall of 2008 she became an associate fellow of JILA and a research assistant professor in the Physics department at the University of Colorado at Boulder.