Photonic Quantum Computing and Thin-Film Lithium Niobate Technology: A Critical Analysis of China's Strategic Advancement in Next-Generation Computing Infrastructure

This comprehensive research paper examines the recent developments in photonic quantum computing technology, with particular emphasis on China's strategic advancement through the Chip Hub for Integrated Photonics Xplore (CHIPX) and Turing Quantum collaboration. The paper analyzes the technical architecture of thin-film lithium niobate (TFLN) photonic chips, their integration into practical data center infrastructure, and the geopolitical implications of achieving industrial-scale production capabilities. Through systematic analysis of technical specifications, manufacturing processes, and performance metrics, this study evaluates claims of thousandfold acceleration in artificial intelligence workloads while providing critical context regarding the distinction between photonic quantum computing and classical quantum computing architectures. The research contextualizes these developments within the broader landscape of global competition in advanced computing technologies, examining implications for technological sovereignty, industrial policy, and the future trajectory of computing infrastructure. This paper contributes to scholarly understanding of photonic computing's potential role in post-Moore's Law computational paradigms while maintaining critical rigor in evaluating extraordinary performance claims.