2009/03/27 by Ville Pietilä, Mikko Möttönen · 1 citation
Physics and Astronomy · #cond-mat.other
paper · pdf · doi:10.1103/physrevlett.103.030401
published as Phys. Rev. Lett. 103, 030401 (2009). · 5 pages + 4 pages of supplementary material
arxiv created 2009/03/27 · arxiv updated 2010/03/25
We demonstrate theoretically that using standard external magnetic fields, one can imprint point-like topological defects to the spin texture of a dilute Bose-Einstein condensate. Symmetries of the condensate order parameter render this topological defect to be accompanied with a vortex filament corresponding to the Dirac string of a magnetic monopole. The vorticity in the condensate coincides with the magnetic field of a magnetic monopole, providing an ideal analogue to the monopole studied by Dirac.