title: Generation and dynamics of vortex lattices in coherent exciton-polariton fields.
abstract: Vortex dynamics in coherent ensembles of exciton polaritons (condensates) is studied in the framework of the polarization-dependent Gross-Pitaevskii equation. Vortex lattices can be resonantly excited in the polariton field by the interference of three or more optical pumps. Vortex-antivortex pairs can also appear in polariton condensates due to scattering with disorder. The nonlinear vortex dynamics is characterized by interactions of vortex cores and vortex-antivortex recombination.
authors.affiliation: School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom.
authors.forename: T C H
authors.initials: TC
authors.lastname: Liew
authors.forename: Yuri G
authors.initials: YG
authors.lastname: Rubo
authors.forename: A V
authors.initials: AV
authors.lastname: Kavokin