title: Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential.
abstract: We discuss techniques to tune and shape the long-range part of the interaction potentials in quantum gases of bosonic polar molecules by dressing rotational excitations with static and microwave fields. This provides a novel tool towards engineering strongly correlated quantum phases in combination with low-dimensional trapping geometries. As an illustration, we discuss the 2D superfluid-crystal quantum phase transition for polar molecules interacting via an electric-field-induced dipole-dipole potential.
authors.affiliation: Institute for Theoretical Physics, University of Innsbruck, 6020 Innsbruck, Austria.
authors.forename: H P
authors.initials: HP
authors.lastname: Büchler
authors.forename: E
authors.initials: E
authors.lastname: Demler
authors.forename: M
authors.initials: M
authors.lastname: Lukin
authors.forename: A
authors.initials: A
authors.lastname: Micheli
authors.forename: N
authors.initials: N
authors.lastname: Prokof'ev
authors.forename: G
authors.initials: G
authors.lastname: Pupillo
authors.forename: P
authors.initials: P
authors.lastname: Zoller