Emergent Haldane Model and Photon-Valley Locking in Chiral Cavities
arXiv:2403.11063 · doi:10.1038/s42005-025-02060-x
Abstract
The realization of Haldane's topological graphene model in practical materials has presented significant challenges. Here, we propose achieving this model by embedding graphene in chiral cavities, using the asymptotically decoupled framework detailed in Ref. [Phys. Rev. Lett. 126, 153603 (2021)]. Additionally, we introduce an equilibrium strategy for achieving valley polarization in this system with C2-symmetry breaking. Through numerical methods, we quantify the locking of photon numbers with Bloch electrons and calculate the topology-induced imbalance of valley photons. Furthermore, we elucidate that topological phase transition is characterized by the sign change of photon numbers during interband excitation. These findings underscore the remarkable potential of utilizing cavity quantum fluctuations to engineer electronic and photonic properties specific to valleys and topologies, particularly within the realm of strong light-matter coupling.
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Cited by in corpus (8)
- Cavity-Vacuum-Induced Chiral Spin Liquids in Kagome Lattices: Tuning and Probing Topological Quantum Phases via Cavity Quantum Electrodynamics
- Quantum Hall effect in a chiral cavity
- Angular Momentum-Dependent Spectral Shift in Chiral Vacuum Cavities
- Cavity Quantum Hall Hydrodynamics
- Cavity-modified quantum electron transport in multi-terminal devices and interferometers
- Non-Hermitian wave-packet dynamics and its realization within a non-Hermitian chiral cavity
- Chern insulators and topological flat bands in cavity-embedded kagome systems
- Spontaneous Symmetry Breaking of Cavity Vacuum and Emergent Gyrotropic Effects in Embedded moiré Superlattices