Phys. Rev. Lett. 87, 120407 (2001) [4 pages]Monopoles in an Antiferromagnetic Bose-Einstein CondensateReceived 8 March 2001; published 3 September 2001 We show that even in three dimensions an antiferromagnetic spin-1 Bose-Einstein condensate, which can, for instance, be created with 23Na atoms in an optical trap, has not only singular linelike vortex excitations, but also allows for singular pointlike topological excitations, i.e., monopoles similar to the ’t Hooft–Polyakov monopoles. We discuss the static and dynamic properties of these monopoles. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.120407
DOI:
10.1103/PhysRevLett.87.120407
PACS:
03.75.Fi, 14.80.Hv, 32.80.Pj, 67.40.-w
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