Oblique Half-Solitons and their Generation in Exciton-Polariton   Condensates
  We describe oblique half-solitons, a new type of topological defects in a two dimensional spinor Bose Einstein condensate. A realistic protocol based on the optical spin Hall effect is proposed toward their generation within an exciton-polariton system. 
Hugo Flayac, Dmitry Solnyshkov and Guillaume Malpuech
cond-mat.quant-gas