Non-local interactions and supersolidity of moiré excitons
arXiv:2205.01812 · doi:10.1103/PhysRevB.106.035406
Abstract
Heterobilayer transition metal dichalcogenide (TMDC) moiré systems provide an ideal framework to investigate strongly correlated physics. Here we theoretically study bosonic many-body phases of excitons in moiré TMDCs. By using two moiré models and cluster mean-field theory, we reveal that, due to non-local Coulomb interactions, moiré excitons can feature exotic supersolid phases, i.e. superfluids of broken translational invariance, and correlated insulating states. The correlated phases exist at experimentally accessible temperatures and are tunable via the twist angle and exciton density.
5 pages, 4 figures and supplementary material
References in corpus (19)
- Valley polarization in MoS2 monolayers by optical pumping
- Observation of Moiré Excitons in WSe2/WS2 Heterostructure Superlattices
- Resonantly hybridised excitons in moiré superlattices in van der Waals heterostructures
- Moiré excitons: from programmable quantum emitter arrays to spin-orbit coupled artificial lattices
- Moiré heterostructures as a condensed matter quantum simulator
- Supersolid hardcore bosons on the triangular lattice
- Exciton band structure of monolayer MoS2
- Theory of optical absorption by interlayer excitons in transition metal dichalcogenide heterobilayers
- Van der Waals Heterostructure Polaritons with moiré-Induced Nonlinearity
- Interlayer coupling in commensurate and incommensurate bilayer structures of transition metal dichalcogenides
- Highly Valley-Polarized Singlet and Triplet Interlayer Excitons in van der Waals Heterostructure
- Excitonic and valleytronic signatures of correlated states at fractional fillings of a moiré superlattice
- Quantum phases of hardcore bosons with long-range interactions on a square lattice
- Non-local interactions in moiré Hubbard systems
- Moiré-Bose-Hubbard model for interlayer excitons in twisted transition metal dichalcogenide heterostructures
- Interaction-Driven Filling-Induced Metal-Insulator Transitions in 2D Moiré Lattices
- Moiré-induced optical non-linearities: Single and multi-photon resonances
- Interaction range and temperature dependence of symmetry breaking in strongly correlated two-dimensional moiré transition metal dichalcogenide bilayers
- Leaky exciton condensates in transition metal dichalcogenide moiré bilayers