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Chiral Modes at Exceptional Points in Exciton-Polariton Quantum Fluid

Gao, Tingge; Li, G; Estrecho, Eliezer; Liew, T.C.H.; Comber-Todd, Daniel; Nalitov, A; Steger, M; West, Ken W.; Pfeiffer, Loren N.; Shoke, D. W.; Kavokin, A; Truscott, Andrew; Ostrovskaya, Elena


We demonstrate the generation of chiral modes-vortex flows with fixed handedness in exciton-polariton quantum fluids. The chiral modes arise in the vicinity of exceptional points (non-Hermitian spectral degeneracies) in an optically induced resonator for exciton polaritons. In particular, a vortex is generated by driving two dipole modes of the non-Hermitian ring resonator into degeneracy. Transition through the exceptional point in the space of the system's parameters is enabled by precise...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.120.065301
Access Rights: Open Access


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