title: Vortex lattices in rotating atomic bose gases with dipolar interactions.
abstract: We show that dipolar interactions have dramatic effects on the ground states of rotating atomic Bose gases in the weak-interaction limit. With increasing dipolar interaction (relative to the net contact interaction), the mean field, or high filling factor, ground state undergoes a series of transitions between vortex lattices of different symmetries: triangular, square, "stripe," and "bubble" phases. We also study the effects of dipolar interactions on the quantum fluids at low filling factors. We show that the incompressible Laughlin state at filling factor nu = 1/2 is replaced by compressible stripe and bubble phases.
authors.affiliation: TCM Group, Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, United Kingdom.
authors.forename: N R
authors.initials: NR
authors.lastname: Cooper
authors.forename: E H
authors.initials: EH
authors.lastname: Rezayi
authors.forename: S H
authors.initials: SH
authors.lastname: Simon