Here, by demonstrating a parity鈥搕ime-symmetric topological insulator, we show that topological transport exists beyond these constraints. Implemented on a photonic platform, our non-Hermitian topological system harnesses the complex interplay between a discrete coupling protocol and judiciously placed ...
by demonstrating a parity–time-symmetric topological insulator, we show that topological transport exists beyond these constraints. Implemented on a photonic platform, our non-Hermitian topological system harnesses the complex interplay between a discrete coupling protocol and judiciously placed losses and,...
1 | Conceptual idea of a PT-symmetric topological insulator. Conventional wisdom regards topological insulators and PT symmetry as mutually exclusive concepts. Distributing gain and loss (±iγ, indicated as red (+) and blue (–), respectively) dynamically along the spatial degrees of freedom x ...
parity–time symmetrytopological photonicsThe invention of the laser has revolutionized modern science and engineering as well as our daily lives. Recently, a... B Qi,H Chen,L Ge,... - 《Advanced Optical Materials》 被引量: 0发表: 2019年 Parity-time-symmetric whispering-gallery mode nanopartic...
Single-mode laser by parity–time symmetry breaking. Science 346, 972–975 (2014). Article ADS Google Scholar Lin, Z. et al. Unidirectional invisibility induced by PT-symmetric periodic structures. Phys. Rev. Lett. 106, 213901 (2011). Article ADS Google Scholar Longhi, S. PT-symmetric ...
The parity conservation of θ and τ only allows each of them respond to external forces as an independent whole, is not whether the θ and τ is symmetric. In high dimensional space-time, the interaction of different symmetries is very complex, which may form various forms of defects. It ...
For the Binary Symmetric Channel (BSC), the graphical structures which limit the performance of iterative decoders are called absorbing sets. Absorbing sets have a similar definition as trapping sets and also control the error floor behavior of message-passing decoders [8]. Over the past two ...
change in the value of the chiral charge [Math Processing Error] associated with the topological current between [Math Processing Error] and [Math Processing Error]: [Math Processing Error] where [Math Processing Error] is the topological charge; for a one-instanton solution, [Math Processing ...
The study of non-Hermitian systems with parity–time (PT) symmetry is a rapidly developing frontier. Realized in recent experiments, PT-symmetric classical optical systems with balanced gain and loss hold great promise for future applications. Here we re
Single-mode laser by parity–time symmetry breaking. Science 346, 972–975 (2014). Article ADS Google Scholar Lin, Z. et al. Unidirectional invisibility induced by PT-symmetric periodic structures. Phys. Rev. Lett. 106, 213901 (2011). Article ADS Google Scholar Longhi, S. PT-symmetric ...