H. Ter\ccas, H. Flayac, D. D. Solnyshkov, G. Malpuech
We show that the interplay between the structure anisotropy and the energy splitting between the TE and TM modes of a microcavity leads to the appearance of a gauge field for a propagating polariton condensate. This field is analog with a spin-orbit coupling and the field texture can be tuned by rotating the sample and ranges continuously from a Rashba to a monopolar field. In the linear regime, the monopolar field leads to a remarkable focusing effect. In the interacting regime, the effective spin-orbit coupling induces a breakdown of superfluidity. The spatially homogeneous flows become unstable and dynamically evolve into textured ground states such as stripes and domain walls.
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http://arxiv.org/abs/1303.4286
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