Generalized Wigner-Smith analysis of resonance perturbations in arbitrary Q non-Hermitian systems

Perturbing resonant systems causes shifts in their associated scattering poles in the complex plane. In a previous study [N. Byrnes and M. R. Foreman, arXiv:2408.11360], we demonstrated that these shifts can be calculated numerically by analyzing the residue of a generalized Wigner-Smith operator as...

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Bibliographic Details
Main Authors: Niall Byrnes, Matthew R. Foreman
Format: Article
Language:English
Published: American Physical Society 2025-03-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.7.013299
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