Creation of Dirac monopoles in spinor Bose-Einstein condensates.
We demonstrate theoretically that, by using external magnetic fields, one can imprint pointlike topological defects on the spin texture of a dilute Bose-Einstein condensate. The 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.
Pietilä
Ville
V
Department of Applied Physics/COMP, Helsinki University of Technology, P.O. Box 5100, FI-02015 TKK, Finland.
Möttönen
Mikko
M