Longchuan Yan

Field implementation of long-distance quantum key distribution over aerial fiber with fast polarization feedback

2018 · Optics Express

Quantum key distribution with polarized qubits has not yet been realized over the aerial fiber, due to rapid polarization changes. Here, we report our recent work towards quantum communication through an aerial fiber channel. We …

Integrating Retrieval-Augmented Generation (RAG) and Knowledge Augmented Generation (KAG) Frameworks to Build Accurate Enterprise Question Answering Systems

2025

With the rapid development of Large Language Models (LLMs), more and more requirements from enterprises for accurate question answering (QA) systems are emerging. LLMs have shown great potential in natural language processing (NLP) but face …