Generating Steady Topologically Non-Trivial Artificial Spin Texture with   Cold Atoms
  In this article we proposed a scheme to generating steady topologically non-trivial artificial spin texture in cold atom systems. An example of generating a texture of charge one skyrmion with Laguerre-Gaussian beam was given. It provides a scheme for studying skyrmion excitations of quantum Hall ferromagnetism in cold atom systems. 
Junyi Zhang
cond-mat.quant-gas