Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Tang Weiyuan"'
Topological photonic insulators show promise for applications in compact integrated photonic circuits due to their ability to transport light robustly through sharp bendings. The number of topological edge states relies on the difference between the
Externí odkaz:
http://arxiv.org/abs/2304.11170
Publikováno v:
Nature Communications 14, 6660 (2023)
As the counterpart of Hermitian nodal structures, the geometry formed by exceptional points (EPs), such as exceptional lines (ELs), entails intriguing spectral topology. We report the experimental realization of order-3 exceptional lines (EL3) that a
Externí odkaz:
http://arxiv.org/abs/2211.15921
Publikováno v:
National Science Review (2022)
Eigenstates of a non-Hermitian system exist on complex Riemannian manifolds, with multiple sheets connecting at branch cuts and exceptional points (EPs). These eigenstates can evolve across different sheets, a process that naturally corresponds to st
Externí odkaz:
http://arxiv.org/abs/2112.00982
Autor:
Sheng, Xiaofang, Li, Xin, Lu, Xinxin, Liu, Xiaohui, Tang, Weiyuan, Yu, Zhihai, Liu, Xiaozhu, Zhang, Fei, Huang, Qun, Huang, Mingzheng
Publikováno v:
In Food Chemistry: X 30 December 2024 24
Autor:
Li, Zheng-wei, Liu, Jing-jing, Chen, Ze-Guo, Tang, Weiyuan, Chen, An, Liang, Bin, Ma, Guancong, Cheng, Jian-chun
Publikováno v:
Phys. Rev. Lett. 129, 084301 (2022)
Weyl points (WPs) are isolated degeneracies carrying quantized topological charges, and are therefore robust against Hermitian perturbations. WPs are predicted to spread to the Weyl exceptional rings (WERs) in the presence of non-Hermiticity. Here, w
Externí odkaz:
http://arxiv.org/abs/2111.15073
Publikováno v:
In Current Research in Food Science 2024 8
Publikováno v:
Journal of Applied Physics; 3/7/2024, Vol. 135 Issue 9, p1-12, 12p
Publikováno v:
Phys. Rev. Lett. 127, 034301 (2021)
Non-Hermitian systems can produce branch singularities known as exceptional points (EPs). Different from singularities in Hermitian systems, the topological properties of an EP can involve either the winding of eigenvalues that produces a discriminan
Externí odkaz:
http://arxiv.org/abs/2010.10118
Publikováno v:
Phys. Rev. Lett. 126, 054301 (2021)
Quantized charge pumping is a robust adiabatic phenomenon uniquely existing in topologically nontrivial systems. Such topological pumping not only brings fundamental insights to the evolution of states under the protection of topology but also provid
Externí odkaz:
http://arxiv.org/abs/2008.00833
Autor:
Sheng, Xiaofang, Huang, Mingzheng, Li, Tingting, Li, Xin, Cen, Shunyou, Li, Qinyang, Huang, Qun, Tang, Weiyuan
Publikováno v:
In Food Chemistry: X 30 June 2023 18