Remote gate control of topological transitions in moiré superlattices via cavity vacuum fields

Abstract

Placed in cavity resonators with three-dimensionally confined electromagnetic wave, the interaction between quasiparticles in solids can be induced by exchanging virtual cavity photons, which can have a non-local characteristic. Here we investigate the possibility of utilizing this nonlocality to realize the remote control of the topological transition in mesoscopic moiré superlattices at full filling (one electron/hole per supercell) embedded in a split-ring terahertz electromagnetic resonator. We show that gate tuning one moiré superlattice can remotely drive a topological band inversion in another moiré superlattice not in contact but embedded in the same cavity. Our study of remote on/off switching of a topological transition provides a novel paradigm for the control of material properties via cavity vacuum fields.

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Cited by in corpus (9)

• Cavity engineering of solid-state materials without external driving
• Cavity electrodynamics of van der Waals heterostructures
• Remote gate control of topological transitions in moiré superlattices via cavity vacuum fields
• Electron conductance and many-body marker of a cavity-embedded topological 1D chain
• Quantum Hall effect in a chiral cavity
• Cavity Quantum Hall Hydrodynamics
• Cavity-modified quantum electron transport in multi-terminal devices and interferometers
• 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