Sa De Melo Abstract

Carlos A.R. Sa De Melo
Georgia Institute of Technology

Quantum Phases of Dipolar Bosons

I will discuss possible quantum phases of bipolar bosons for optical lattices and continuum systems in the two-dimensional regime. For the optical lattice case, I will discuss a few low temperature phases that emerge out the dipolar superfluid. These phases include checkerboard supersolids, striped supersolids, and collapsed. The emergence of a striped supersolid is particularly interesting because the anisotropy of the dipolar interaction can be controlled externally. In the case of dipolar bosons in continuum systems, I will discuss the finite temperature phase diagram of purely repulsive interactions and show that for large dipolar repulsions a dipolar Wigner crystal appears at low temperatures and melts at intermediate temperatures into a dipolar hexatic fluid, before becominga normal dipolar fluid at higher temperatures. The experimental characterization of these phases may be possible via Bragg scattering techniques