title: Efimov effect for three interacting bosonic dipoles.
abstract: Three oriented bosonic dipoles are treated by using the hyperspherical adiabatic representation, providing numerical evidence that the Efimov effect persists near a two-dipole resonance and in a system where angular momentum is not conserved. Our results further show that the Efimov features in scattering observables become universal, with a known three-body parameter; i.e., the resonance energies depend only on the two-body physics, which also has implications for the universal spectrum of the four-dipole problem. Moreover, the Efimov states should be long-lived, which is favorable for their creation and manipulation in ultracold dipolar gases. Finally, deeply bound two-dipole states are shown to be relatively stable against collisions with a third dipole, owing to the emergence of a repulsive interaction originating in the angular momentum nonconservation for this system.
authors.affiliation: Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309-0440, USA.
authors.forename: Yujun
authors.initials: Y
authors.lastname: Wang
authors.forename: J P
authors.initials: JP
authors.lastname: D'Incao
authors.forename: Chris H
authors.initials: CH
authors.lastname: Greene