Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose–Einstein condensate

Borgh, Magnus O, Lovegrove, J and Ruostekoski, J (2014) Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose–Einstein condensate. New Journal of Physics, 16. ISSN 1367-2630

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Abstract

We propose to use spatial control of the Zeeman energy shifts in an ultracold atomic gas to engineer an interface between topologically distinct regions. This provides an experimentally accessible means for studying the interface physics of topological defects and textures. Using the spin-1 Bose–Einstein condensate as an example, we find spinor wave functions that represent defects and textures continuously connecting across the interface between polar and ferromagnetic regions induced by spatially varying Zeeman shifts. By numerical energy-minimization we characterize the defect core structures and determine the energetic stability. The techniques proposed could potentially be used in the laboratory to emulate complex interface physics arising, e.g., in cosmological and condensed-matter contexts in both uniform and lattice systems.

Item Type: Article
Additional Information: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Pure Connector
Date Deposited: 12 Oct 2016 16:00
Last Modified: 28 Oct 2020 00:53
URI: https://ueaeprints.uea.ac.uk/id/eprint/60895
DOI: 10.1088/1367-2630/16/5/053046

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