Along similar lines, coupled non-Hermitian systems have provided yet additional degrees of freedom to obtain better sensors via higher-order exceptional points. Quite recently, a new class of non-Hermitian systems, known as non-Hermitian topological sensors (NTOS) has been theoretically proposed. ...
Along similar lines, coupled non-Hermitian systems have provided yet additional degrees of freedom to obtain better sensors via higher-order exceptional points. Quite recently, a new class of non-Hermitian systems, known as non-Hermitian topological sensors (NTOS) has been theoretically proposed. ...
Non-Hermitian photonics and topological photonics, as new research fields in optics, have attracted much attention in recent years, accompanying by a great deal of new physical concepts and novel effects emerging. The two fields are gradually crossed dur
Non-Hermitian theory is a theoretical framework used to describe open systems. It offers a powerful tool in the characterization of both the intrinsic degrees of freedom of a system and the interactions with the external environment. The non-Hermitian fr
Exceptional points (EPs) arising in non-Hermitian systems have led to a variety of intriguing wave phenomena, and have been attracting increased interest in various physical platforms. In this Review, we highlight the latest fundamental advances in the c
Non-Hermitian Photonics 基于对称性和拓扑原理调控的人工光子系统在控制光的激发、传播、耦合和接收方面具有极大的灵活性,使其成为实现光子器件新潜力的主要物理平台。 最值得注意的是,通过光学增益和损耗操纵光子本征态的能力为定制非厄米哈密顿量(non-Hermitian ...
Xiong, Y.: Why does bulk boundary correspondence fail in some non-hermitian topological models. J. Phys. Commun. 2(3), 035043 (2018) Article Google Scholar Shen, H., Zhen, B., Fu, L.: Topological band theory for non-hermitian Hamiltonians. Phys. Rev. Lett. 120, 146402 (2018) Art...
Besides establishing a paradigmatic case to break the incompatibility of the LCTs and the TCTs in non‐Hermitian systems, the both availabilities of the sensitive critical feature and the robust topological feature can also provide more potential for designing quantum devices orsensors. 展开 关键词:...
53kAccesses 45Altmetric Metrics Abstract In recent years, notions drawn from non-Hermitian physics and parity–time (PT) symmetry have attracted considerable attention. In particular, the realization that the interplay between gain and loss can lead to entirely new and unexpected features has initiated...
Topological complex-energy braiding of non-Hermitian bands. Nature 598, 59–64 (2021). Article ADS CAS PubMed Google Scholar Zhang, X., Li, G., Liu, Y., Tai, T., Thomale, R. & Lee, C. H. Tidal surface states as fingerprints of non-Hermitian nodal knot metals. Commun. Phys....