Zobrazeno 1 - 10
of 425
pro vyhledávání: '"C-T Chan"'
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-9 (2024)
Abstract In systems exhibiting the non-Hermitian skin effect (NHSE), the bulk spectrum under open boundary conditions (OBC) significantly differs from that of its periodic counterpart. This disparity renders the conventional bulk-boundary corresponde
Externí odkaz:
https://doaj.org/article/5c7decde7177460ca8785c6bf763f121
Publikováno v:
Light: Science & Applications, Vol 13, Iss 1, Pp 1-8 (2024)
Abstract A boundary mode localized on one side of a finite-size lattice can tunnel to the opposite side which results in unwanted couplings. Conventional wisdom tells that the tunneling probability decays exponentially with the size of the system whi
Externí odkaz:
https://doaj.org/article/69b7ac07d2fe48e395e08fc9503297f3
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 12, Pp 1-7 (2023)
Abstract We argue that the recently discovered bilinear superintegrability http://arxiv.org/2206.02045 generalizes, in a non-trivial way, to monomial matrix models in pure phase. The structure is much richer: for the trivial core Schur functions requ
Externí odkaz:
https://doaj.org/article/113140383d194be78927eab41cad89a2
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-8 (2023)
Abstract Non-Hermitian systems are known for their intriguing topological properties, which underpin various exotic physical phenomena. Exceptional points, in particular, play a pivotal role in fine-tuning these systems for optimal device functionali
Externí odkaz:
https://doaj.org/article/a2d88c098b5e4070b6757ec0b207f582
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-12 (2023)
Abstract In non-Hermitian systems, defective band degeneracies called exceptional points can form exceptional lines (ELs) in 3D momentum space in the absence of any symmetries. However, whether the presence of symmetries can affect the EL configurati
Externí odkaz:
https://doaj.org/article/d968d28c3dd04b1ab57cf44fe44f3550
Autor:
Mudi Wang, Qiyun Ma, Shan Liu, Ruo-Yang Zhang, Lei Zhang, Manzhu Ke, Zhengyou Liu, C. T. Chan
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Bulk and edge modes and their relation in topological materials is something researchers have been tried to harness for various applications. Here the authors provide a method to achieve chiral anomaly bulk states by applying boundary conditions to a
Externí odkaz:
https://doaj.org/article/468cfc8e68034b1c96248f0642a981ef
Autor:
Cuicui Lu, Yi-Zhi Sun, Chenyang Wang, Hongyu Zhang, Wen Zhao, Xiaoyong Hu, Meng Xiao, Wei Ding, Yong-Chun Liu, C. T. Chan
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Here the authors provide the experimental observation of a topological rainbow in a silicon-based nanophotonic chip. The system is robust against disorders allows to separate and trap topological photonic states of different wavelength into different
Externí odkaz:
https://doaj.org/article/3368092043aa4e0db6555eb85111d280
Publikováno v:
New Journal of Physics, Vol 26, Iss 2, p 023035 (2024)
Boundary modes localized on the boundaries of a finite-size lattice experience a finite size effect (FSE) that could result in unwanted couplings, crosstalks and formation of gaps even in topological boundary modes. It is commonly believed that the F
Externí odkaz:
https://doaj.org/article/ea3860a6824f44eba451d873c000bc4d
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Non-Abelian topological insulators receive increasing attention due to entangled bulk bandgaps different from Abelian counterparts. Here, the authors realize two new classes of topological charges characterizing of a four-band non-Abelian topological
Externí odkaz:
https://doaj.org/article/9aaa1df123714452b4dab29eb6cac958
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Non-conservativeness plays a mysterious role in optical trapping. Applying the non-Hermitian theory, the authors showed that the existence of exceptional points drives the Lorentz force to lose its ability to bind clusters of ~10 or more microparticl
Externí odkaz:
https://doaj.org/article/fcbb7aca087740f1a0e1f157d78023e0