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arXiv · 1802.02527

Polariton Hall Effect in Transition-Metal Dichalcogenides

Á. Gutiérrez-Rubio·L. Chirolli·L. Martín-Moreno·F. J. García-Vidal·F. Guinea
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Abstract

We analyze the properties of strongly coupled excitons and photons in systems made of semiconducting two-dimensional transition-metal dichalcogenides embedded in optical cavities. Through a detailed microscopic analysis of the coupling we unveil novel, highly tunable features of the spectrum, that result in polariton splitting and a breaking of light-matter selection rules. The dynamics of the composite polaritons is influenced by the Berry phase arising both from their constituents and from the confinement-enhanced coupling. We find that light-matter coupling emerges as a mechanism that enhances the Berry phase of polaritons well beyond that of its elementary constituents, paving the way to achieve a polariton Hall effect.

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Á. Gutiérrez-Rubio, L. Chirolli, L. Martín-Moreno, F. J. García-Vidal, F. Guinea. 2018-02-07. Polariton Hall Effect in Transition-Metal Dichalcogenides. https://doi.org/10.1103/physrevlett.121.137402

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