Discovery of a maximally charged Weyl point

oleh: Qiaolu Chen, Fujia Chen, Yuang Pan, Chaoxi Cui, Qinghui Yan, Li Zhang, Zhen Gao, Shengyuan A. Yang, Zhi-Ming Yu, Hongsheng Chen, Baile Zhang, Yihao Yang

Format: Article
Diterbitkan: Nature Portfolio 2022-11-01

Deskripsi

Here the authors experimentally demonstrate a maximally charged Weyl point in a three dimensional photonic crystal, with topological charge of four — the maximal charge number that a two-fold Weyl point can host, which supports quadruple-helicoid Fermi arcs