3 papers
physics.optics2026
Programmable Hybrid Exceptional Points in Passive Scattering Networks
Kaiyuan Wang, Niall Byrnes, Matthew R. Foreman
Exceptional points (EPs) have long promised enhanced sensing of physical signals, but have practically been limited by simultaneous enhancement of noise. Aligning an EP's non-analy…
physics.optics2025
Generalized Wigner-Smith theory for perturbations at exceptional and diabolic point degeneracies
Kaiyuan Wang, Niall Byrnes, Matthew R. Foreman
Spectral degeneracies, including diabolic (DP) and exceptional (EP) points, exhibit unique sensitivity to external perturbations, enabling powerful control and engineering of wave…
physics.optics2025
Topological Engineering of High-Order Exceptional Points through Transformation Optics
Kaiyuan Wang, Qi Jie Wang, Matthew R. Foreman +1
Exceptional points (EPs) in non-Hermitian photonic systems have attracted considerable research interest due to their singular eigenvalue topology and associated anomalous physical…