3 papers
gr-qc2026
Resumming Kerr Quasinormal-Mode Frequencies: Accuracy and Breakdown Near Extremality
Jierui Hu, Kent Yagi, Nicolas Yunes
Kerr black-hole quasinormal modes are usually computed with numerical methods, but analytic approximations remain useful for identifying the physics that controls different parts o…
physics.optics2025
Quantum-coherent optical isolation and circulation using frequency conversion on a chip
Jierui Hu, Hao Yuan, Joshua Akin +2
Breaking optical reciprocity enables new regimes of light--matter interaction with broad implications for fundamental physics and emerging quantum technologies. Although various ap…
quant-ph2025
Efficient bidirectional quantum frequency conversion between telecom and visible bands using programmable III-V nanophotonic waveguides
Jierui Hu, Hao Yuan, Joshua Akin +3
Quantum frequency conversion (QFC) is essential for interfacing quantum systems operating at different wavelengths and for realizing scalable quantum networks. Despite extensive pr…