Controllable half-vortex lattices in an incoherently pumped polariton condensate

Details Controllable half-vortex lattices in an incoherently pumped polariton condensate Controllable half-vortex lattices in an incoherently pumped polariton condensate

2011-02-25

arxiv.org/abs/1102.5302v2

Physics

Condensed Matter

Quantum Gases

4+epsilon pages, 2 figures. Rewritten, and new figures using parameters relevant for recent GaAs experiments

Scientific paper

We show how the transition between synchronized and desynchronized states of a spinor polariton condensate can be used to drive a transition between stationary vortex lattices and half-vortex lattices. This provides a way to control polariton spin textures by a combination of pump spot profile and applied magnetic fields. To do this, we extend the model of non-equilibrium spinor condensates to include relaxation, and study how this affects the desynchronization transition. We discuss how the pattern formation can be explained by behavior of the homogeneous system.

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