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Stable core symmetries and confined textures for a vortex line in a Spinor Bose-Einstein condensate

Stable core symmetries and confined textures for a vortex line in a Spinor Bose-Einstein condensate
Stable core symmetries and confined textures for a vortex line in a Spinor Bose-Einstein condensate
We show how a singly quantized vortex can exhibit energetically stable defect cores with different symmetries in an atomic spin-1 polar Bose-Einstein condensate, and how a stable topologically nontrivial Skyrmion texture of lower dimensionality can be confined inside the core. The core isotropy and the stability of the confined texture are sensitive to Zeeman level shifts. The observed structures have analogies, respectively, in pressure-dependent symmetries of superfluid liquid He3 vortices and in the models of superconducting cosmic strings.
bose-einstein condensates, topological defects, vortices
1-6
Borgh, Magnus O.
a3c181f8-0535-46cd-bb9a-6e930a81f86e
Nitta, Muneto
32af9470-c70c-450d-95a0-875a47bfce6b
Ruostekoski, Janne
2beb155e-64b0-4ee9-9cfe-079947a9c9f4
Borgh, Magnus O.
a3c181f8-0535-46cd-bb9a-6e930a81f86e
Nitta, Muneto
32af9470-c70c-450d-95a0-875a47bfce6b
Ruostekoski, Janne
2beb155e-64b0-4ee9-9cfe-079947a9c9f4

Borgh, Magnus O., Nitta, Muneto and Ruostekoski, Janne (2016) Stable core symmetries and confined textures for a vortex line in a Spinor Bose-Einstein condensate. Physical Review Letters, 116 (8), 1-6. (doi:10.1103/PhysRevLett.116.085301).

Record type: Article

Abstract

We show how a singly quantized vortex can exhibit energetically stable defect cores with different symmetries in an atomic spin-1 polar Bose-Einstein condensate, and how a stable topologically nontrivial Skyrmion texture of lower dimensionality can be confined inside the core. The core isotropy and the stability of the confined texture are sensitive to Zeeman level shifts. The observed structures have analogies, respectively, in pressure-dependent symmetries of superfluid liquid He3 vortices and in the models of superconducting cosmic strings.

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Accepted/In Press date: 1 February 2016
e-pub ahead of print date: 2 February 2016
Published date: 25 February 2016
Keywords: bose-einstein condensates, topological defects, vortices
Organisations: Applied Mathematics

Identifiers

Local EPrints ID: 388520
URI: http://eprints.soton.ac.uk/id/eprint/388520
PURE UUID: 9cdb78da-80ae-44d4-a856-fc317c487063

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Date deposited: 29 Feb 2016 09:59
Last modified: 09 Dec 2019 19:44

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