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Efimov Effect for Three Interacting Bosonic Dipoles

Yujun Wang, J. P. D’Incao, and Chris H. Greene
Phys. Rev. Lett. 106, 233201 – Published 9 June 2011
Physics logo See Synopsis: New place to search for Efimov states

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.

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  • Received 7 March 2011

DOI:https://doi.org/10.1103/PhysRevLett.106.233201

© 2011 American Physical Society

Synopsis

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New place to search for Efimov states

Published 10 June 2011

Three-body bound states, known to form among spherically symmetric atoms, should also exist for dipole molecules.

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Authors & Affiliations

Yujun Wang, J. P. D’Incao, and Chris H. Greene

  • Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309-0440, USA

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Issue

Vol. 106, Iss. 23 — 10 June 2011

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