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physics.optics2026★ 3 cited
Recent advances in the combination of nonlinearity and exceptional points
Kai Bai, Chen Lin, Jia-Zheng Li +1
The exotic physics emerging at singularities has long attracted intense theoretical and experimental attention. In non-Hermitian systems, exceptional points (EPs), unique spectral…
physics.optics2025
Observation of Arbitrarily Configurable Nonlinear Topological Modes
Kai Bai, Chen Lin, Jia-Zheng Li +3
Nonlinear topology is an emerging field that combines the intrinsic reconfigurability of nonlinear systems with the robustness of topological protection, offering fertile ground fo…
physics.optics2024★ 1 cited
Exceptional features in nonlinear Hermitian systems
Liang Fang, Kai Bai, Cheng Guo +3
Non-Hermitian systems and their topological singularities, such as exceptional points (EPs), lines, and surfaces, have recently attracted intense interest. The investigation of the…