87 citations · 348 across the 15 of their papers we have counts for
6 papers · 1 filter
Parity bifurcations in trapped multistable phase locked exciton-polariton condensates
E. Z. Tan, H. Sigurdsson, T. C. H. Liew
We present a theoretical scheme for multistability in planar microcavity exciton-polariton condensates under nonresonant driving. Using an excitation profile resulting in a spatial…
Geometric frustration in polygons of polariton condensates creating vortices of varying topological charge
Tamsin Cookson, Kirill Kalinin, Helgi Sigurdsson +6
Vorticity is a key ingredient to a broad variety of fluid phenomena, and its quantised version is considered to be the hallmark of superfluidity. Circulating flows that correspond…
Spin order and phase transitions in chains of polariton condensates
H. Ohadi, A. J. Ramsay, H. Sigurdsson +8
We demonstrate that multiply-coupled spinor polariton condensates can be optically tuned through a sequence of spin-ordered phases by changing the coupling strength between nearest…
Spontaneous and Superfluid Chiral Edge States in Exciton-Polariton Condensates
H. Sigurdsson, G. Li, T. C. H. Liew
We present a scheme of interaction-induced topological bandstructures based on the spin anisotropy of exciton-polaritons in semiconductor microcavities. We predict theoretically th…
A driven-dissipative spin chain model based on exciton-polariton condensates
H. Sigurdsson, A. J. Ramsay, H. Ohadi +4
An infinite chain of driven-dissipative condensate spins with uniform nearest-neighbor coherent coupling is solved analytically and investigated numerically. Above a critical occup…
Parity solitons in nonresonantly driven-dissipative condensate channels
Helgi Sigurdsson, Timothy C. H. Liew, Ivan A. Shelykh
We study analytically and numerically the condensation of a driven-dissipative exciton-polariton system using symmetric nonresonant pumping geometries. We show that the lowest cond…