Antiferromagnetic Ising model in a triangular vortex lattice of quantum fluids of light.

ABSTRACT: Vortices are topologically distinctive objects appearing as phase twists in coherent fields of optical beams and Bose-Einstein condensates. Structured networks and artificial lattices of coupled vortices could offer a powerful platform to study and simulate interaction mechanisms between constituents of condensed matter systems, such as antiferromagnetic interactions, by replacement of spin angular momentum with orbital angular momentum. Here, we realize such a platform using a macroscopic quantum fluid of light based on exciton-polariton condensates. We imprint all-optical hexagonal lattice that results into a triangular vortex lattice, with each cell having a vortex of charge l = ±1. We reveal that pairs of coupled condensates spontaneously arrange their orbital angular momentum a

SUBMITTER: Alyatkin S 

PROVIDER: S-EPMC11343025 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature