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exceptional points 1floquet modes 1non-hermitian physics 1parity-time symmetry 1photonic time crystals 1

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1 paper

physics.optics2026

Non-Hermitian Interaction between Light and Photonic Time Crystal Beyond the Floquet Quasinormal Mode Approximation

Yuhang Li, Yu Zhuang, Zilong Bao +4

The paper studies how light interacts with a photonic time crystal, revealing non‑Hermitian mode couplings that suppress exponentially growing Floquet modes and go beyond the usual…