Dipolar Confinement-Induced Resonances of Ultracold Gases in Waveguides

P. Giannakeas, V. S. Melezhik, and P. Schmelcher
Phys. Rev. Lett. 111, 183201 – Published 28 October 2013
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Abstract

We develop a nonperturbative theoretical framework to treat collisions with generic anisotropic interactions in quasi-one-dimensional geometries. Our method avoids the limitations of pseudopotential theory and allows us to include accurately long-range anisotropic interactions. For ultracold dipolar collisions in a harmonic waveguide we predict dipolar confinement-induced resonances (DCIRs) which are attributed to different angular momentum states. The analytically derived resonance condition reveals in detail the interplay of the confinement with the anisotropic nature of the dipole-dipole interactions. The results are in excellent agreement with ab initio numerical calculations confirming the robustness of the presented approach. The exact knowledge of the positions of DCIRs may pave the way for the experimental realization of, e.g., Tonks-Girardeau-like or super-Tonks-Girardeau-like phases in effective one-dimensional dipolar gases.

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  • Received 22 February 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.183201

© 2013 American Physical Society

Authors & Affiliations

P. Giannakeas1,*, V. S. Melezhik2,†, and P. Schmelcher1,3,‡

  • 1Zentrum für Optische Quantentechnologien, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
  • 2Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russian Federation
  • 3The Hamburg Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

  • *pgiannak@physnet.uni-hamburg.de
  • melezhik@theor.jinr.ru
  • pschmelc@physnet.uni-hamburg.de

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Issue

Vol. 111, Iss. 18 — 1 November 2013

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