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Optical and Quantum Electronics
Erschienen in: Optical and Quantum Electronics 2/2024

01.02.2024

Analysis of Hermitian and non-Hermitian diabolic points and exceptional rings in parity-time symmetric ZRC and RLC dimers

verfasst von: Stéphane Boris Tabeu, Fernande Fotsa-Ngaffo, Aurélien Kenfack-Jiotsa

Erschienen in: Optical and Quantum Electronics | Ausgabe 2/2024

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Abstract

We present the analysis of diabolic points in Hermitian and non-Hermitian electronic dimers. The condition of unbreakable Parity-time symmetry is established for both PT-symmetric ZRC and RLC dimers. We show how appears non-Hermitian degeneracy points in the spectrum and how they are protected against a Hermitian perturbation. When a non- Hermitian perturbation is added in the setup, the non-Hermitian diabolic point (NHDP) turns into a ring of exceptional points as in some Dirac and Weyl semimetals. Some simulations of oscillations around these particular points in LTspice are in perfect accordance with the one predicted analytically and numerically. This work opens a gold road for investigations on topological electrical circuits for robust transport of information at room temperature.
Vorheriger Artikel Performance analysis of 3 × 10 Gb/s UOWC transmission system based on OCDMA using a DPS code
Nächster Artikel Controlling the dynamical properties of focused gaussian beam in atomic media through control field manipulation

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Metadaten
Titel
Analysis of Hermitian and non-Hermitian diabolic points and exceptional rings in parity-time symmetric ZRC and RLC dimers
verfasst von
Stéphane Boris Tabeu
Fernande Fotsa-Ngaffo
Aurélien Kenfack-Jiotsa
Publikationsdatum
01.02.2024
Verlag
Springer US
Erschienen in
Optical and Quantum Electronics / Ausgabe 2/2024
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-023-05755-z

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