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Phys. Rev. A 61, 053609 (2000) [6 pages]

Spin monopoles with Bose-Einstein condensates

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Juan J. García-Ripoll*
Departamento de Mátemáticas, Escuela Técnica Superior de Ingenieros Industriales, Universidad de Castilla–La Mancha, Avenida Camilo José Cela 3, 13071 Ciudad Real, Spain

Juan I. Cirac and J. Anglin
Institut für Theoretische Physik, Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria

Víctor M. Pérez-García†
Departamento de Mátemáticas, ETSI Industriales, Universidad de Castilla–La Mancha, Avenida Camilo José Cela 3, 13071 Ciudad Real, Spain

P. Zoller
Institut für Theoretische Physik, Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria

Received 1 June 1999; published 17 April 2000

We study the feasibility of preparing a Bose-Einstein condensed sample of atoms in a macroscopic quantum state that resembles a spin monopole. In this state, the atomic internal spins lie in the x-y plane and point along the radial direction. The stability and dynamics of this structure are studied analytically in some cases and numerically in the more general situation. We find these structures to be stable objects giving rise to a nontrivial state of a Bose-Einstein condensate.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.61.053609
DOI:
10.1103/PhysRevA.61.053609
PACS:
03.75.Fi, 05.30.Jp, 32.80.Pj

*Electronic address: jjgarcia@ind-cr.uclm.es

†Electronic address: vperez@ind-cr.uclm.es

 
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