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

Zuzhang Lin, Chengxin Xiao, Danh Phuong Nguyen, Geva Arwas, Cristiano Ciuti, Wang Yao

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

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.

Original languageEnglish
Article numbere2306584120
JournalProceedings of the National Academy of Sciences of the United States of America
Volume120
Issue number32
DOIs
StatePublished - 1 Jan 2023
Externally publishedYes

Keywords

  • nonlocal interaction
  • remote control
  • topological transition
  • vacuum field

ASJC Scopus subject areas

  • General

Fingerprint

Dive into the research topics of 'Remote gate control of topological transitions in moiré superlattices via cavity vacuum fields'. Together they form a unique fingerprint.

Cite this