3 papers
physics.optics2026
Compound symmetries and double antisymmetry groups in linear time-invariant photonic systems
Yunrui Wang, Shiyu Li, Cheng Guo
Symmetry is fundamental to photonic systems. External (spatial) symmetries and internal symmetries---Lorentz reciprocity, energy conservation, and time-reversal symmetry---constrai…
physics.optics2026
Optimal universal bounds for waves with varied coherence based on supremum and infimum coherence spectra
Shiyu Li, Cheng Guo
We establish a majorization-based theory for bounding observables of waves with varied coherence. For any measurement, exact bounds are attained by the maximal and minimal elements…
physics.optics2025
Joint control of coherent transmission, reflection, and absorption
Shiyu Li, Dongha Kim, Shanhui Fan +1
Controlling multiple wave properties simultaneously poses a key challenge in coherent control of wave transport. We present a theory for joint coherent control of transmission, ref…