We further demonstrate that ECs can be observed in prototypical non-Hermitian photonic crystals. Our results combine the effect of non-Hermitian spatiotemporal symmetry and topology to pave the way for understanding and manipulating the morphology of ELs in non-Hermitian crystalline systems.#Exceptional...
The spontaneous breaking of parity-time (PT) symmetry yields rich critical behavior in non-Hermitian systems, and has stimulated much interest, albeit most previous studies were performed within the single-particle or mean-field framework. Here, by studying the collective excitations of a Fermi super...
It has subsequently been experimentally realized on versatile platforms including photonics and nanophotonics12,13,14,15, plasmonics16 and quantum optics17 and in the context of parity–time symmetry and nonlinear non-Hermitian phenomena18,19. Fig. 2: Demonstration of the A-SubSy-protected ...
58 Theta-finite pro-Hermitian vector bundles from loop groups elements 51:02 Torsion points and concurrent lines on Del Pezzo surfaces of degree one 58:59 Applications of optimal transportation in causal inference 1:02:02 The Emergence of Spatial Patterns for Diffusion-Coupled Compartments with ...
(TIs) with edge darkstates (EDS) by using the 38-fold way of non-Hermitian systems in this paper.The dissipative dynamics of these quadratic open fermionic systems is capturedby a non-Hermitian single-particle matrix which contains both the internaldynamics and the dissipation, refereed to as ...
Nonreciprocal thermal radiation can violate Kirchhoff's law and exhibit different emissivity at symmetric polar angles relative to the normal direction. Re... K Shi,Y Sun,R Hu,... - 《Nanophotonics》 被引量: 0发表: 2024年 Non-Hermitian topology in static mechanical metamaterials The combination...
Krasnok A, Nefedkin N, Alu A (2021) Parity-time symmetry and exceptional points: A tutorial. IEEE Antennas Propag Mag 63(6):110–121.https://doi.org/10.1109/MAP.2021.3115766 Bender CM (2007) Making sense of non-Hermitian Hamiltonians. Rep Prog Phys 70(6):947–1018.https://doi.org...
alternative "Either non-measurepreservation Or unitary evolution" exists in the framework ofSchroedinger's theory. This explains irreversibility and allows todescribe both time-symmetric and time-asymmetric processes inHermitian quantum theory. The CPT and Noether's theorems remainvalid in chronotopology....
Nearly one century after the birth of quantum mechanics, parity–time symmetry is revolutionizing and extending quantum theories to include a unique family of non-Hermitian Hamiltonians. While conceptually striking, experimental demonstration of parity–time symmetry remains unexplored in quantum electronic ...
We acknowledge support by the Deutsche Forschungs-gemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy through the Würzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter - ct.qmat (EXC 2147, project-id 390858490), as well as through a ...