Unitary Scattering Protected by Pseudo-Hermiticity
Sign Up to like & getrecommendations! Published in 2022 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/39/3/037302
Abstract: Hermitian systems possess unitary scattering. However, the Hermiticity is unnecessary for a unitary scattering although the scattering under the influence of non-Hermiticity is mostly non-unitary. Here we prove that the unitary scattering is protected by… read more here.
Keywords: unitary scattering; pseudo hermiticity; scattering protected; hermiticity ... See more keywords
Antilinearity rather than Hermiticity as a guiding principle for quantum theory
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/aac035
Abstract: Currently there is much interest in Hamiltonians that are not Hermitian but instead possess an antilinear $PT$ symmetry, since such Hamiltonians can still lead to the time-independent evolution of scalar products, and can still have… read more here.
Keywords: antilinearity rather; hermiticity; antilinear symmetry; symmetry ... See more keywords
Observation of topological edge states induced solely by non-Hermiticity in an acoustic crystal
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.180303
Abstract: Most existing non-Hermitian topological systems derive their nontrivial topology from Hermitian factors. Here, the authors report on the experimental observation of acoustic topological edge states induced solely by non-Hermiticity. They show that non-Hermiticity is able… read more here.
Keywords: hermiticity; non hermiticity; edge states; induced solely ... See more keywords