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Mr Helgi Sigurdsson

Mr Helgi Sigurdsson

Research Fellow in Polaritonics

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Address: B46, West Highfield Campus, University Road, SO17 1BJ (View in Google Maps)


Research groups

Current research

I am a Research Fellow at the University of Southampton in theoretical physics. My work involves optical microcavities, nonlinear photonics, unconventional physically-inspired computing strategies, and quantum light-matter interactions in low-dimensional heterostructures with a focus on the strong-coupling regime hosting hybrid light-matter modes known as exciton-polaritons. My expertise is to provide theoretical analysis and simulation of dynamics of exciton-polariton condensates which possess an abundance of interesting nonlinear and non-Hermitian physics. This includes optical logic gates, polaritonic neuromorphic computing, XY spin-glass simulators, polarization sensitive information transport, artificial lattice dynamics, non-Hermitian topological physics, quantised vortices, solitons, domain walls, skyrmions, multistability, limit cycle dynamics, bifurcation points, and chaos.

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