Comment on 'Topological stability of the half-vortices in spinor exciton-polariton condensates'

We show that the conclusions of recent paper by Flayac et al. [Phys. Rev. B 81, 045318 (2010)] concerning the stability of half-quantum vortices are misleading. We demonstrate the existence of static half-quantum vortices in exciton-polariton condensates and calculate the warping of their texture produced by transverse-electric-transverse-magnetic splitting of polariton band.