Vortex-antivortex pair dynamics in an exciton-polariton condensate

Abstract

The study of superfluid and Berezinskii-Kosterlitz-Thouless phases in exciton-polaritons requires an understanding of vortex dynamics in a dissipative unconfined condensate. In this article we study the motion of dynamic vortex-antivortex pairs and show that vortex pair stability defined as ordered motion as opposed to rapid separation or recombination is the result of balance between dissipative velocities in the condensate and interaction with thermal polaritons. The addition of a trapping potential is further shown to considerably enhance the lifetime of a single vortex pair in this system. These investigations have important consequences for interpretation of recent results and future investigations of two-dimensional superfluid phases in polariton condensates.

13 pages, 6 figures

References in corpus (5)

• Quantised Vortices in an Exciton-Polariton Fluid
• Excitations in a non-equilibrium Bose-Einstein condensate of exciton-polaritons
• Quantum-fluid dynamics of microcavity polaritons
• Spontaneous rotating vortex lattices in a pumped decaying condensate
• Quantum Degenerate Exciton-Polaritons in Thermal Equilibrium

Cited by in corpus (20)

• Energy Relaxation in a 1-D Polariton Condensate
• Creation and manipulation of stable dark solitons and vortices in microcavity polariton condensates
• Instability-induced formation and non-equilibrium dynamics of phase defects in polariton condensates
• Interactions and scattering of quantum vortices in a polariton fluid
• Interaction-Shaped Vortex-Antivortex Lattices in Polariton Fluids
• Optically driven rotation of exciton-polariton condensates
• Polaritonic network as a paradigm for dynamics of coupled oscillators
• Phase ordering kinetics of a nonequilibrium exciton-polariton condensate
• Robustness and observability of rotating vortex-lattices in an exciton-polariton condensate
• Formation dynamics of exciton polariton vortices created by non-resonant annular pumping
• Excitation of exciton-polariton vortices in pillar microcavities by a Gaussian beam
• Rotating patterns in polariton condensates in ring-shaped potentials under bichromatic pump
• Nonlinear Excitations, Stability Inversions and Dissipative Dynamics in Quasi-one-dimensional Polariton Condensates
• Spiraling vortices in exciton-polariton condensates
• Artificial polariton molecules
• Dynamics of phase defects trapped in optically imprinted orbits in dissipative binary polariton condensate
• Spontaneous and engineered transformations of topological structures in nonlinear media with gain and loss
• Unidirectional vortex waveguides and multistable vortex pairs in polariton condensates
• Vortices in polariton OPO superfluids
• Symmetry-breaking Effects for Polariton Condensates in Double-Well Potentials