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Updated: Feb 1, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Moiré-polaritons in a dark Bose-Einstein condensate
Moroni Santiago-García1, Shunashi G Castillo-López2, David A Ruiz-Tijerina2
1Instituto Nacional de Astrofísica, Óptica y Electrónica, Calle Luis Enrique Erro 1, Sta. Ma. Tonantzintla, Puebla CP 72840, Mexico.
Abstract:
Quantum mixtures of moiré excitons have arisen as a platform for realizing novel phases of light and matter. Here, we study moiré polaritons coupled to a Bose-Einstein condensate of dark-state excitons confined to a moiré superlattice. We develop a variational approach to analyze the optical response of the system and demonstrate that strong exciton-exciton interactions significantly modify the character of moiré polaritons, leading to the emergence of moiré polaron-polaritons with sizable quasiparticle energy shifts of the avoided crossing between the principal polariton branches, and the emergence of an additional, stable repulsive-polariton bound state.
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