Multichannel scattering and loss processes of ultracold atoms in anisotropic harmonic waveguides

Sara Shadmehri, Shahpoor Saeidian, and Vladimir S. Melezhik

Phys. Rev. A 93, 063616 – Published 13 June 2016

Abstract

We have developed the general grid method for multichannel scattering of bosonic atoms inside a harmonic waveguide with transverse anisotropy. This approach is employed to analyze elastic as well as inelastic multichannel confined scattering. For the elastic scattering, the effects of the range and form of interatomic potential and the waveguide anisotropy on the confinement-induced resonance are studied. We have also investigated quantitatively the reactive rate constant in confined atom-atom collisions. It is found that a slight anisotropy to the confining trap considerably enhances the reactive rate constant in multichannel regime.

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Received 18 March 2016

DOI:https://doi.org/10.1103/PhysRevA.93.063616

Physics Subject Headings (PhySH)

Ultracold collisions Waveguides

Ultracold gases

Atomic, Molecular & Optical

Authors & Affiliations

Sara Shadmehri^1,*, Shahpoor Saeidian^1,†, and Vladimir S. Melezhik^2,‡

¹Optics and Photonics Research Center, Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Gava Zang, Zanjan 45137-66731, Iran
²Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research and Dubna State University, Dubna, Moscow Region 141980, Russian Federation

^*s.shadmehri@iasbs.ac.ir
^†saeidian@iasbs.ac.ir
^‡melezhik@theor.jinr.ru

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Issue

Vol. 93, Iss. 6 — June 2016

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