Spin monopoles with Bose-Einstein condenstates
  We study the feasibility of preparing a Bose-Einstein condensed sample of atoms in a 2D spin monopole. In this state, the atomic internal spins lie in the x-y plane, and point in the radial direction. 
J.J. Garcia-Ripoll, J.I. Cirac, J. Anglin, V. Perez-Garcia, and P.   Zoller