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Remote Gate Control of Topological Transitions in Moiré Superlattices Via Cavity Vacuum Fields

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Specialty Science
Date 2023 Aug 1
PMID 37527343
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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 nonlocal 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 paradigm for the control of material properties via cavity vacuum fields.

Citing Articles

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

Lin Z, Xiao C, Nguyen D, Arwas G, Ciuti C, Yao W Proc Natl Acad Sci U S A. 2023; 120(32):e2306584120.

PMID: 37527343 PMC: 10410769. DOI: 10.1073/pnas.2306584120.

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