Non-Hermitian systems display remarkable response effects that reflect a variety of distinct spectral scenarios, such as exceptional points where the eigen... S Bid,H Schomerus 被引量: 0发表: 2024年 Non-Hermitian Physics andTopological Phenomena inConvective Thermal Metamaterials Non-Hermitian physics...
Exceptional points are branch singularities on non-Hermitian eigenvalue manifolds and exhibit exotic topological phenomena associated with the winding of eigenvalues and eigenvectors. The confluence of non-Hermiticity and band topology generates new phenomena such as the non-Hermitian skin effect, which is...
Recently, it has been found that non-Hermitian physics and topological phenomena can be implemented in purely conductive thermal metamaterials. However, conduction alone is not omnipotent due to the missing of degrees of freedom. Heat convection, accompanying with conduction, is capable of realizing a...
Non-Hermiticity leads to distinctive topological phenomena absent in Hermitian systems. However, connection between such intrinsic non-Hermitian topology and Hermitian topology has remained largely elusive. Here, considering the bulk and boundary as an environment and system, we demonstrate that anomalous ...
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 context of EPs in various nanoscale systems, ...
In particular, we elucidate how the paramount and genuinely NH concept of exceptional degeneracies, at which both eigenvalues and eigenvectors coalesce, leads to phenomena drastically distinct from the familiar Hermitian realm. An immediate consequence is the ubiquitous occurrence of nodal NH topological ...
Observation of Topological Transition in Floquet Non-Hermitian Skin Effects in Silicon Photonics doi:10.1103/PhysRevLett.133.073803Non-Hermitian physics has greatly enriched our understanding of nonequilibrium phenomena and uncovered novel effects such as the non-Hermitian skin effect (NHSE) that has ...
Department of Physics and Henes Center for Quantum Phenomena, Michigan Technological University, Houghton, MI, USA Ramy El-Ganainy Max Planck Institute for the Physics of Complex Systems, Dresden, Germany Ramy El-Ganainy Department of Engineering Science and Physics, College of Staten Island, City ...
There have been many excellent review articles in the past decade to help understand the key points of non-Hermitian physics/optics and topological photonics. Non-Hermitian physical phenomena used to be realized in microcavity, which is a good platform to observe exceptional points. Cao et al. [...
Spin–orbit coupling is an essential mechanism underlying quantum phenomena such as the spin Hall effect and topological insulators1. It has been widely studied in well-isolated Hermitian systems, but much less is known about the role dissipation plays in spin–orbit-coupled systems2. Here we impl...