Bing Qi

Bridging the gap between theory and practice in quantum cryptography

2015 · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Quantum key distribution (QKD) needs to close the big gap between theory and practice to be a suitable technology for achieving information-theoretic secure communications. Indeed, recent studies on side-channel attacks have exposed the vulnerabilities of …

Experimental Study of Hong–Ou–Mandel Interference Using Independent Phase Randomized Weak Coherent States

2018 · Journal of Lightwave Technology

Hong-Ou-Mandel interferometers are valuable tools in many Quantum Information and Quantum Optics applications that require photon indistinguishability. The theoretical limit for the Hong-Ou-Mandel visibility is 0.5 for indistinguishable weak coherent photon states, but several device …

Quantum secret sharing with polarization-entangled photon pairs

2019 · Physical Review A

We describe and experimentally demonstrate a more practical three-party quantum secret sharing (QSS) protocol using polarization-entangled photon pairs. The source itself serves as an active participant and can switch between the required photon states by …

DeepIcon: A Hierarchical Network for Layer-Wise Icon Vectorization

2024

In contrast to the well-established technique of rasterization, vectorization of images poses a significant challenge in the field of computer graphics. Recent learning-based methods for converting raster images to vector formats frequently suffer from incomplete …

Detector noise in continuous-variable quantum key distribution

2025 · arXiv (Cornell University)

In continuous-variable (CV) QKD with optical coherent detection, the widely adopted \textit{trusted detector noise} model improves both the secret key rate and the transmission distance. This model assumes that detector noise is inherently random and …