Coalescence of two exceptional points in the anti-hermitian 3-level pairing model
J. Dukelsky, J. Okolowicz, M. Ploszajczak
TL;DR
This paper investigates how two exceptional points merge to form a higher-order singularity within an anti-hermitian 3-level pairing model, revealing complex spectral phenomena in non-Hermitian quantum systems.
Contribution
It introduces the analysis of higher-order singularities resulting from exceptional point coalescence in a complex-extended 3-level Richardson-Gaudin model.
Findings
Identification of higher-order singularities from exceptional point coalescence
Insights into spectral behavior in anti-hermitian quantum models
Extension of exceptional point theory to multi-level systems
Abstract
The formation of a higher-order singularity by the coalescence of two exceptional points is studied in the anti-hermitian limit of the complex-extended 3-level Richardson-Gaudin model.
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