Dirac monopoles and dipoles in ferromagnetic spinor Bose-Einstein condensates

Journal Article · Wed Oct 01 04:00:00 EDT 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.68.043604· OSTI ID:20640367

Savage, C M ^[1]; Ruostekoski, J ^[2]

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1. Australian Centre for Quantum Atom Optics, Australian National University, ACT 0200 (Australia)
2. Department of Physical Sciences, University of Hertfordshire, Hatfield, Herts, AL10 9AB (United Kingdom)

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 that they can be observable for realistic experimental parameters.

• OSTI ID: 20640367
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 68; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BOSE-EINSTEIN CONDENSATION
DIPOLES
FERROMAGNETISM
MAGNETIC MONOPOLES
RADIATION PRESSURE
RELAXATION
SPIN
TEXTURE
THREE-DIMENSIONAL CALCULATIONS
TRAPPING
VORTICES