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Phys Rev Lett. 2009 Jan 30;102(4):046407. Epub 2009 Jan 29.

Proposal for a mesoscopic optical berry-phase interferometer.

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  • 1Science Institute, University of Iceland, Dunhaga-3, IS-107, Reykjavik, Iceland.


We propose a novel spin-optronic device based on the interference of polaritonic waves traveling in opposite directions and gaining topological Berry phase. It is governed by the ratio of the TE-TM and Zeeman splittings, which can be used to control the output intensity. Because of the peculiar orientation of the TE-TM effective magnetic field for polaritons, there is no analogue of the Aharonov-Casher phase shift existing for electrons.

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