%0 Journal Article
%T Half-skyrmion and meron pair in spinor condensates
%A Yu-Xin Hu
%A Christian Miniatura
%A Beno£¿t Gr¨¦maud
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevA.92.033615
%X We propose a simple experimental scheme to generate spin textures in the ground state of interacting ultracold bosonic atoms loaded in a two-dimensional harmonic trap. Our scheme is based on two co-propagating Laguerre-Gauss laser beams illuminating the atoms and coupling two of their internal ground state Zeeman sublevels. Using a Gross-Pitaevskii description, we show that the ground state of the atomic system has different topological properties depending on the interaction strength and the laser beam intensity. A half-skyrmion state develops at low interactions while a meron pair develops at large interactions.
%U http://arxiv.org/abs/1410.8634v1