Parity-time (PT)-symmetry in optics is a condition whereby the real and imaginary parts of the refractive index across a photonic structure are deliberately balanced. This balance can lead to interesting optical phenomena, such as unidirectional invisibility, loss-induced lasing, single-mode lasing ...
This proposition makes use of some newly developed concepts based on non-Hermiticity and parity-time (PT) symmetry-ideas first conceived within quantum field theories. By harnessing such notions, recent works indicate that novel synthetic structures and devices with counter-intuitive properties can be ...
The recently-developed notion of 'parity-time (PT) symmetry' in optical systems with a controlled gain-loss interplay has spawned an intriguing way of achieving optical behaviors that are presently unattainable with standard arrangements. In most experimental studies so far, however, the ...
16–21.ThisconditioncorrespondstoanexactorunbrokenPTsymmetry,asopposedtothatofbrokenPTsymmetry,where,eventhoughPTˆH=ˆHPTisstillvalid,ˆHandPT(oranyotherantilinearoperator)possessdifferenteigenvectors22.Forthecaseconsideredhere,giventhattheactionoftheparityPandtimeToperatorsisdefinedasˆp→−ˆp,ˆ...
ow. Before we introduce the concept of spacetime reflection in optics, we first briefly outline some of the basic aspects of this symmetry within the context of quantum mechanics. In general, a ? =p ? 2 /2m + V (x ? are position and Hamiltonian H ? ) (where x ? and p momentum ...
E. et al. Observation of parity–time symmetry in optics. Nat. Phys. 6, 192–195 (2010). Nature Materials | Volume 23 | March 2024 | 377–382 381 Article https://doi.org/10.1038/s41563-023-01773-0 20. Regensburger, A. et al. Parity–time synthetic photonic lattices. Nature 488,...
Parity-Time Symmetry in Optics et al. Observation of parity-time symmetry in optics. Nature Phys. 6, 192-195 (2010).Ruter, C.E.; Makris, K.G.; El-Ganainy, R.; Christo... BC Kress 被引量: 21发表: 2014年 Observation of Parity-Time Symmetry Breaking in Single-Photon Interfero...
parity-time ($\\mathcal{PT}$) symmetry, originally introduced in non-Hermitian extensions of quantum mechanical theories, has come into thinking of photonics, providing a fertile ground for studying, observing, and utilizing some of the peculiar aspects of $\\mathcal{PT}$ symmetry in optics. ...
Parity-time symmetry meets photonics: A new twist in non-Hermitian optics Charge conjugation, parity, time reversal, and other discrete symmetriesIn the past decade, the concept of parity-time ($\\\mathcal{PT}$) symmetry, or... Longhi,Stefano - 《Epl》 被引量: 9发表: 2017年 Constructing...
parity–time (PT) symmetry2,3,4,5,6,7. Even though the Hermiticity of quantum observables was never in doubt, such concepts have motivated discussions on several fronts in physics, including quantum field theories8, non-Hermitian Anderson models9and open quantum systems10,11, to mention a ...