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research article
Non-Abelian Gauge Fields in Photonic Cavities and Photonic Superfluids
We show that the TE-TM modes splitting and the structure anisotropy of a semiconductor microcavity combine into a non-Abelian gauge field for exciton-polaritons or cavity photons. The field texture can be tuned simply by rotating the sample and ranges continuously from a Rashba to a monopolar field. In the noninteracting regime, the latter leads to remarkable focusing and conical diffraction effects. In the interacting regime, the spin-orbit coupling induces a breakdown of superfluidity. The spatially homogeneous flows become unstable and dynamically evolve into spin textured states, such as stripes or domain walls.
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Type
research article
Web of Science ID
WOS:000331951200005
Authors
Publication date
2014
Publisher
Published in
Volume
112
Issue
6
Article Number
066402
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
April 2, 2014