Polariton Hall Effect in Transition-Metal Dichalcogenides

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.

arXiv comment5 pages, 2 figures. Supplementary Material with 4 pages, 4 figures

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Cited by in corpus (10)

• Electrically tunable Berry curvature and strong light-matter coupling in birefringent perovskite microcavities at room temperature
• Topological phases of polaritons in a cavity waveguide
• Twist Angle Tuning of Moiré Exciton Polaritons in van der Waals Heterostructures
• Accelerating Polaritons with External Electric and Magnetic Fields
• Electrically tunable topological transport of moiré polaritons
• Polaritonic Tamm states induced by cavity photons
• Microscopic theory of cavity-confined monolayer semiconductors: polariton-induced valley relaxation and the prospect of enhancing and controlling the valley pseudospin by chiral strong coupling
• Brightening odd-parity excitons in transition-metal dichalcogenides: Rashba spin-orbit interaction, skyrmions, and cavity polaritons
• Hybrid dark excitons in monolayer ${MoS}_2$
• Strain-Fluctuation-Induced Near-Quantization of Valley Hall Conductivity in Graphene Systems