• Open Access

Exploring the stability and dynamics of dipolar matter-wave dark solitons

M. J. Edmonds, T. Bland, D. H. J. O'Dell, and N. G. Parker
Phys. Rev. A 93, 063617 – Published 15 June 2016

Abstract

We study the stability, form, and interaction of single and multiple dark solitons in quasi-one-dimensional dipolar Bose-Einstein condensates. The solitons are found numerically as stationary solutions in the moving frame of a nonlocal Gross Pitaevskii equation and characterized as a function of the key experimental parameters, namely the ratio of the dipolar atomic interactions to the van der Waals interactions, the polarization angle, and the condensate width. The solutions and their integrals of motion are strongly affected by the phonon and roton instabilities of the system. Dipolar matter-wave dark solitons propagate without dispersion and collide elastically away from these instabilities, with the dipolar interactions contributing an additional repulsion or attraction to the soliton-soliton interaction. However, close to the instabilities, the collisions are weakly dissipative.

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  • Received 4 March 2016

DOI:https://doi.org/10.1103/PhysRevA.93.063617

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

M. J. Edmonds1, T. Bland1, D. H. J. O'Dell2, and N. G. Parker1

  • 1Joint Quantum Centre Durham–Newcastle, School of Mathematics and Statistics, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
  • 2Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, L8S 4M1, Canada

Article Text

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Issue

Vol. 93, Iss. 6 — June 2016

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