Observation of anti-parity-time-symmetry, phase transitions and exceptional points in an optical fibre
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-020-20797-7
Abstract: The exotic physics emerging in non-Hermitian systems with balanced distributions of gain and loss has recently drawn a great deal of attention. These systems exhibit phase transitions and exceptional point singularities in their spectra, at… read more here.
Keywords: anti parity; parity time; transitions exceptional; phase transitions ... See more keywords
Real frequency splitting indirectly coupled anti-parity-time symmetric nanoparticle sensor
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Physics"
DOI: 10.1063/5.0020944
Abstract: Detecting the size of a single nanoparticle with high precision is crucial to understanding the characteristic of the nanoparticle. Traditionally, a nanoparticle as a perturbation enters the mode volume of a cavity, leading to eigenfrequency… read more here.
Keywords: nanoparticle sensor; anti parity; parity time; frequency splitting ... See more keywords
Untying links through anti-parity-time-symmetric coupling
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.161101
Abstract: We reveal how the vector field links are untied under the influence of anti-parity-time-symmetric couplings in a dissipative sublattice-symmetric topological photonic crystal lattice. The topology of the quasi-one-dimensional two-band system is encoded in the geometric… read more here.
Keywords: anti parity; vector; parity time; time symmetric ... See more keywords