Interaction-Shaped Vortex-Antivortex Lattices in Polariton Fluids

Abstract

Topological defects such as quantized vortices are one of the most striking manifestations of the superfluid nature of Bose-Einstein condensates and typical examples of quantum mechanical phenomena on a macroscopic scale. Here we demonstrate the formation of a lattice of vortex-antivortex pairs and study, for the first time, its properties in the non-linear regime at high polarion-density where polariton-polariton interactions dominate the behaviour of the system. In this work first we demonstrate that the array of vortex-antivortex pairs can be generated in a controllable way in terms of size of the array and in terms of size and shape of it fundamental unit cell. Then we demonstrate that polariton-polariton repulsion can strongly deform the lattice unit cell and determine the pattern distribution of the vortex-antivortex pairs, reaching a completely new behaviour with respect to geometrically generated vortex lattices whose shape is determined only by the geometry of the system.

References in corpus (9)

• Quantum fluids of light
• Observation of Superfluidity of Polaritons in Semiconductor Microcavities
• Quantised Vortices in an Exciton-Polariton Fluid
• Quantum-fluid dynamics of microcavity polaritons
• Spontaneous rotating vortex lattices in a pumped decaying condensate
• Spatial and spectral shape of inhomogeneous non-equilibrium exciton-polariton condensates
• Half-solitons in a polariton quantum fluid behave like magnetic monopoles
• Hydrodynamic nucleation of vortices and solitons in a resonantly excited polariton superfluid
• Superflow of resonantly driven polaritons against a defect

Cited by in corpus (4)

• Formation dynamics of exciton polariton vortices created by non-resonant annular pumping
• Merging of vortices and antivortices in polariton superfluids
• Vortex Dynamics of Rotating Bose-Einstein Condensate of Microcavity Polaritons
• Critical dynamics and tree-like spatiotemporal patterns in exciton-polaritoncondensates