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arXiv · 2301.04210

Next nearest neighbour coupling with spinor polariton condensates

Dmitriy Dovzhenko·Denis Aristov·Lucy Pickup·Helgi Sigurdsson·Pavlos G. Lagoudakis
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Abstract

We report on experimental observation of next-nearest-neighbour coupling between ballistically expanding spinor exciton-polariton condensates in a planar semiconductor microcavity. All-optical control over the coupling strength between neighbouring condensates is demonstrated through distance-periodic pseudospin screening of their ballistic particle outflow due to the inherent splitting of the planar cavity transverse-electric (TE) and transverse-magnetic (TM) modes. By screening the nearest-neighbour coupling we overcome the conventional spatial coupling hierarchy between condensates. This offers a promising route towards creating unconventional non-planar many-body Hamiltonians using networks of ballistically expanding spinor exciton-polariton condensates.

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Dmitriy Dovzhenko, Denis Aristov, Lucy Pickup, Helgi Sigurdsson, Pavlos G. Lagoudakis. 2023-01-10. Next nearest neighbour coupling with spinor polariton condensates. https://doi.org/10.1103/physrevb.108.l161301

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