“Artificial sun” experiment able to break fusion plasma density limit news.cgtn.comTokamak experiments exceed plasma density limit, offering new approach to fusion ignition Phys.orgChina’s EAST Tokamak experiments achieve stable operation at densities beyond limits Interesting EngineeringChina Advances Toward Fusion Ignition With Major Plasma Breakthrough SciTechDailyChinese EAST Tokamak Breakthrough Surpasses Greenwald Limit: New Era for Fusion Power and AI-Driven Energy Optimization Blockchain News