Spontaneous self-ordered states of vortex-antivortex pairs in a polariton condensate
نویسندگان
چکیده
F. Manni,1,* T. C. H. Liew,2 K. G. Lagoudakis,3 C. Ouellet-Plamondon,1 R. André,4 V. Savona,5 and B. Deveaud1 1Institute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland 2Division of Physics and Applied Physics, Nanyang Technological University, 63737 Singapore 3E. L. Ginzton Laboratory, Stanford University, Stanford, California 93405-4088, USA 4Institut Néel, CNRS, 25 Avenue des Martyrs, 38042 Grenoble, France 5Institute of Theoretical Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland (Received 14 February 2013; published 15 November 2013)
منابع مشابه
Phase Fluctuations in Microcavity Exciton Polariton Condensation a Dissertation Submitted to the Department of Physics and the Committee on Graduate Studies of Stanford University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy
In a homogeneous two-dimensional system at non-zero temperature, although there can be no ordering of infinite range, an ordered superfluid phase is expected to occur for a Bose liquid. Theory predicts that, in this phase, the correlation function decays with distance as a power law, and quantum vortices are bound to antivortices to form molecular-like pairs. We study the relevance of this theo...
متن کاملPhase ordering kinetics of a nonequilibrium exciton-polariton condensate
We investigate the process of coarsening via annihilation of vortex-antivortex pairs, following the quench to the condensate phase in a nonresonantly pumped polariton system. We find that the late-time dynamics is an example of universal phase-ordering kinetics, characterized by scaling of correlation functions in time. Depending on the parameters of the system, the evolution of the characteris...
متن کاملGeneration and dynamics of vortex lattices in coherent exciton-polariton fields.
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 dy...
متن کاملEffect of interactions on vortices in a nonequilibrium polariton condensate.
We demonstrate the creation of vortices in a macroscopically occupied polariton state formed in a semiconductor microcavity. A weak external laser beam carrying orbital angular momentum (OAM) is used to imprint a vortex on the condensate arising from the polariton optical parametric oscillator (OPO). The vortex core radius is found to decrease with increasing pump power, and is determined by po...
متن کاملVortex Chain in a Resonantly Pumped Polariton Superfluid
Exciton-polaritons are light-matter mixed states interacting via their exciton fraction. They can be excited, manipulated, and detected using all the versatile techniques of modern optics. An exciton-polariton gas is therefore a unique platform to study out-of-equilibrium interacting quantum fluids. In this work, we report the formation of a ring-shaped array of same sign vortices after injecti...
متن کامل