Beam dynamics induced by the quantum metric of exceptional rings

  • Z. Zhang
  • , I. Septembre
  • , Z. Liu
  • , P. Kokhanchik
  • , S. Liang
  • , F. Liu
  • , C. Li
  • , H. Wang
  • , M. Liu
  • , Y. Zhang
  • , M. Xiao
  • , G. Malpuech
  • , D. Solnyshkov

Research output: Contribution to journalConference articlepeer-review

Abstract

We study experimentally and theoretically the dynamics of wave packets at exceptional rings stemming from Dirac points in a photonic honeycomb lattice. We demonstrate a new effect: the transverse non-Hermitian drift in the reciprocal space, useful for beam steering. Its description is based on biorthogonal quantum metric.

Original languageEnglish
Pages (from-to)967-968
Number of pages2
JournalInternational Conference on Metamaterials, Photonic Crystals and Plasmonics
StatePublished - 2025
Event15th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2025 - Malaga, Spain
Duration: 22 Jul 202525 Jul 2025

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