Pengde Wu

Abstract Non-Hermitian systems exhibit exponentially amplified spectral sensitivity at higher-order exceptional points (HOEPs), where the eigenvalue response grows with the EP order. Conventional characterization relies on identifying reflection minima, implicitly imposing a fixed-gain constraint.

Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. References 1, , , , and , “A Comprehensive Review on Wireless Capacitive Power Transfer Technology: Fundamentals and Applications,” IEEE Access 10 (2021): 3116–3143. 2 and , “Optimization of a Capacitive Wireless Power Transfer System With Two Electric Field Repeaters,” International Journal of Circuit Theory and Applications 51, no. 6 (2023): 2623–2637.