Superradiance of Strongly Interacting Dipolar Excitons in Moiré Quantum Materials
arXiv:2410.08891 · doi:10.1103/PhysRevLett.134.126901
Abstract
Moiré lattices created in two-dimensional heterostructures exhibit rich many-body physics of interacting electrons and excitons and, at the same time, suggest promising optoelectronic applications. Here, we study the cooperative radiance of moiré excitons that is demonstrated to emerge from the deep subwavelength nature of the moiré lattice and the strong excitonic on-site interaction. In particular, we show that the static dipole-dipole interaction between interlayer excitons can strongly affect their cooperative optical properties, suppressing superradiance of disordered states while enhancing superradiance of ordered phases of moiré excitons. Moreover, we show that doping permits direct control of optical cooperativity, e.g., by generating supperradiant dynamics of otherwise subradiant states of excitons. Our results show that interlayer moiré excitons offer a unique platform for exploring cooperative optical phenomena in strongly interacting many-body systems, thus, holding promise for applications in quantum nonlinear optics.
Peer-reviewed version
References in corpus (27)
- Observation of Long-Lived Interlayer Excitons in Monolayer MoSe2-WSe2 Heterostructures
- Observation of Moiré Excitons in WSe2/WS2 Heterostructure Superlattices
- Many-Body Physics with Individually-Controlled Rydberg Atoms
- Signatures of Fractional Quantum Anomalous Hall States in Twisted MoTe2 Bilayer
- Moiré heterostructures as a condensed matter quantum simulator
- Integer and fractional Chern insulators in twisted bilayer MoTe2
- Cooperative resonances in light scattering from two-dimensional atomic arrays
- Van der Waals Heterostructure Polaritons with moiré-Induced Nonlinearity
- Storing light with subradiant correlations in arrays of atoms
- Universality of Dicke superradiance in arrays of quantum emitters
- Correlated insulator of excitons in WSe2/WS2 moiré superlattices
- Dipolar quantum solids emerging in a Hubbard quantum simulator
- A subwavelength atomic array switched by a single Rydberg atom
- Kinetic Magnetism in Triangular Moiré Materials
- Highly nonlinear dipolar exciton-polaritons in bilayer MoS
- Dicke superradiance in ordered lattices: dimensionality matters
- Characterizing superradiant dynamics in atomic arrays via a cumulant expansion approach
- Extended Bose-Hubbard model with dipolar excitons
- Beyond lowest order mean field theory for light interacting with atom arrays
- Excitonic Mott insulator in a Bose-Fermi-Hubbard system of moiré / heterobilayer
- Intercell Moiré Exciton Complexes in Electron Lattices
- Collective Radiative Interactions in the Discrete Truncated Wigner Approximation
- Dynamic population of multiexcitation subradiant states in incoherently excited atomic arrays
- Doping a Mott insulator with excitons in moiré bilayer: fractional superfluid, neutral Fermi surface and Mott transition
- Highly tunable moiré superlattice potentials in twisted hexagonal boron nitrides
- Linear optical elements based on cooperative subwavelength emitter arrays
- Green's function approach to interacting lattice polaritons and optical nonlinearities in subwavelength arrays of quantum emitters