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Dirac monopoles and dipoles in ferromagnetic spinor Bose-Einstein condensates

Dirac monopoles and dipoles in ferromagnetic spinor Bose-Einstein condensates
Dirac monopoles and dipoles in ferromagnetic spinor Bose-Einstein condensates
We investigate a radial spin hedgehog, analogous to the Dirac monopole, in an optically trapped atomic spin-1 Bose-Einstein condensate. By joining together a monopole-antimonopole pair, we may form a vortex line with free ends. We numerically simulate the three-dimensional dynamics and imaginary time relaxation of these structures to nonsingular textures and show they can be observable for realistic experimental parameters.
ferromagnetism, bose-einstein condensation, radiation pressure, magnetic monopoles
1050-2947
043604-[6pp]
Savage, C.M.
c1938161-fb0e-4461-a840-4e1436c84333
Ruostekoski, J.
2beb155e-64b0-4ee9-9cfe-079947a9c9f4
Savage, C.M.
c1938161-fb0e-4461-a840-4e1436c84333
Ruostekoski, J.
2beb155e-64b0-4ee9-9cfe-079947a9c9f4

Savage, C.M. and Ruostekoski, J. (2003) Dirac monopoles and dipoles in ferromagnetic spinor Bose-Einstein condensates. Physical Review A, 68 (4), 043604-[6pp]. (doi:10.1103/PhysRevA.68.043604).

Record type: Article

Abstract

We investigate a radial spin hedgehog, analogous to the Dirac monopole, in an optically trapped atomic spin-1 Bose-Einstein condensate. By joining together a monopole-antimonopole pair, we may form a vortex line with free ends. We numerically simulate the three-dimensional dynamics and imaginary time relaxation of these structures to nonsingular textures and show they can be observable for realistic experimental parameters.

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Published date: October 2003
Keywords: ferromagnetism, bose-einstein condensation, radiation pressure, magnetic monopoles

Identifiers

Local EPrints ID: 29352
URI: http://eprints.soton.ac.uk/id/eprint/29352
ISSN: 1050-2947
PURE UUID: 5a3d736f-8378-479b-9ffb-5b55a4f02e9a

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Date deposited: 12 May 2006
Last modified: 15 Mar 2024 07:30

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Contributors

Author: C.M. Savage
Author: J. Ruostekoski

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