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physics.optics2026
Fisher-information retention under local driving in non-Hermitian feed-forward chains
Qingrui Bai, Zhichao Li, Junlong Kou
When local drive hardware is installed before a sensing task is revealed, directional non-Hermitian buildup creates a tradeoff between targeted preparation and spatial coverage. We…
physics.optics2026
Low-threshold vortex lasing in three-dimensional cavities via flatband bound states in the continuum
Zi-Xin Zhou, Weimin Wang, Huijie Li +2
Bound states in the continuum (BICs) offer a robust route toward high-Q resonators and topological structured-light generation. While optically pumped BIC lasers have advanced sign…