Chiral transmission by an open evolution trajectory in a non-Hermitian system

• Main Authors: Shu, Xiaoqian, Zhong, Qi, Hong, Kai, You, Oubo, Wang, Jian, Hu, Guangwei, Alù, Andrea, Zhang, Shuang, Christodoulides, Demetrios N., Chen, Lin
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2024
• Subjects: Engineering; Closed trajectory; Eigen modes
• Online Access: https://hdl.handle.net/10356/175598
• Institution: Nanyang Technological University

Exceptional points (EPs), at which two or more eigenvalues and eigenstates of a resonant system coalesce, are associated with non-Hermitian Hamiltonians with gain and/or loss elements. Dynamic encircling of EPs has received significant interest in recent years, as it has been shown to lead to highly...