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Helgi Sigurðsson - Nýdoktor

Helgi Sigurðsson

–

Verkfræði- og náttúruvísindasvið

Helgi Sigurðsson

Nýdoktor

Nýdoktor

Aðsetur
VR-3
Tölvupóstur
helg [hjá] hi.is

Starfseining
Raunvísindastofnun

ORCID vefsíða
https://orcid.org/0000-0002-4156-4414

Útgefið efni

2021

Observation of second-order meron polarization textures in optical microcavitiesOptica
Optically controlled polariton condensate moleculesPhysical Review B
Engineering spatial coherence in lattices of polariton condensatesOptica
Geometric frustration in polygons of polariton condensates creating vortices of varying topological chargeNature Communications
Photonic Berry curvature in double liquid crystal microcavities with broken inversion symmetryPhysical Review B
Polariton spin jets through optical controlPhysical Review B

2020

Optical Control of Couplings in Polariton Condensate LatticesPhysical Review Letters
Optical control of couplings in polariton condensate latticesPhysical Review Letters
Time-delay polaritonicsCommunications Physics
Hysteresis in linearly polarized nonresonantly driven exciton-polariton condensatesPhysical Review Research
Engineering photon statistics in a spinor polariton condensate
Lotka-Volterra population dynamics in coherent and tunable oscillators of trapped polariton condensatesPhysical Review B
Optical orientation, polarization pinning, and depolarization dynamics in optically confined polariton condensatesPhysical Review B
Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phasesNature Communications
Pseudo-spin destabilization in optically confined exciton-polariton condensatesOptics InfoBase Conference Papers
Solving the max-3-cut problem using synchronized dissipative networks
Interaction induced point scatterer lattices and flat band condensation of exciton-polaritons
Lotka-Volterra population dynamics in coherent and tunable oscillators of trapped polariton condensatesPhysical Review B
Coherence Revivals of a Spinor Polariton Condensate from Self-induced Larmor Precession
Optical orientation, polarization pinning, and depolarization dynamics in optically confined polariton condensatesPhysical Review B
Optical orientation, polarization pinning and depolarization dynamics in optically confined polariton condensatesPhysical Review B
Synchronization in optically trapped polariton Stuart-Landau networksPhysical Review B
Synchronization in optically trapped polariton Stuart-Landau networksPhysical Review B

2019

Observation of inversion, hysteresis, and collapse of spin in optically trapped polariton condensates
Spontaneous topological transitions in a honeycomb lattice of exciton-polariton condensates due to spin bifurcationsPhysical Review B
Probabilistic solving of NP -hard problems with bistable nonlinear optical networksPhysical Review B
Optically trapped polariton condensates as semiclassical time crystalsPhysical Review A
All-to-All Intramodal Condensate Coupling by Multifrequency Excitation of PolaritonsACS Photonics
Amplification of nonlinear polariton pulses in waveguidesOptics Express
Probabilistic solving of
NP
-hard problems with bistable nonlinear optical networks
Observation of inversion, hysteresis, and collapse of spin in optically trapped polariton condensatesPhysical Review B
Optical control of coupling in phase-locked polariton dyadsOptics InfoBase Conference Papers

2018

Parity bifurcations in trapped multistable phase locked exciton-polariton condensatesPhysical Review B
Parity bifurcations in trapped multistable phase locked exciton-polariton condensatesPhysical Review B
Transition from Propagating Polariton Solitons to a Standing Wave Condensate Induced by InteractionsPhysical Review Letters
Spin Domains in One-Dimensional Conservative Polariton SolitonsACS Photonics
Transition from Propagating Polariton Solitons to a Standing Wave Condensate Induced by InteractionsPhysical Review Letters

2017

Driven-dissipative spin chain model based on exciton-polariton condensatesPhys. Rev. B
Parity solitons in nonresonantly driven-dissipative condensate channelsPhys. Rev. B
Spontaneous and superfluid chiral edge states in exciton-polariton condensatesPhys. Rev. B
Electrical and optical switching in the bistable regime of an electrically injected polariton laserPhys. Rev. B
Spin Order and Phase Transitions in Chains of Polariton CondensatesPhys. Rev. Lett.

2016

Half-skyrmion spin textures in polariton microcavitiesPhys. Rev. B

2015

Polariton spin whirlsPhysical Review B - Condensed Matter and Materials Physics
Aharonov-Bohm effect for excitons in a semiconductor quantum ring dressed by circularly polarized lightPhysical Review B - Condensed Matter and Materials Physics
Aharonov-Bohm effect induced by circularly polarized lightSuperlattices and Microstructures
Switching waves in multilevel incoherently driven polariton condensatesPhysical Review B - Condensed Matter and Materials Physics

2014

Information processing with topologically protected vortex memories in exciton-polariton condensatesPhysical Review B - Condensed Matter and Materials Physics
Vortices in spinor cold exciton condensates with spin-orbit interactionPhysical Review B - Condensed Matter and Materials Physics
Optically induced Aharonov-Bohm effect in mesoscopic ringsPhysical Review B - Condensed Matter and Materials Physics

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