title: Bright solitons in non-equilibrium coherent quantum matter.
abstract: We theoretically demonstrate a mechanism for bright soliton generation in spinor non-equilibrium Bose-Einstein condensates made of atoms or quasi-particles such as polaritons in semiconductor microcavities. We give analytical expressions for bright (half) solitons as minimizing functions of a generalized non-conservative Lagrangian elucidating the unique features of inter and intra-competition in non-equilibrium systems. The analytical results are supported by a detailed numerical analysis that further shows the rich soliton dynamics inferred by their instability and mutual cross-interactions.
authors.affiliation: Clarendon Laboratory , University of Oxford , Parks Road, Oxford OX1 3PU, UK.
authors.forename: F
authors.initials: F
authors.lastname: Pinsker
authors.affiliation: Institute of Theoretical Physics , École Polytechnique Fédérale de Lausanne EPFL, Lausanne 1015, Switzerland.
authors.forename: H
authors.initials: H
authors.lastname: Flayac
keywords: Bose–Einstein condensation; bright solitons; superfluidity