What Is a Digital Twin?

Digital twins are transforming how scientists study and improve complex systems, and reducing the time between discovery and delivery. Learn what a digital twin is and how researchers at Lawrence Berkeley National Laboratory (Berkeley Lab) are combining real-time data, physics-based models, and artificial intelligence to create dynamic, living simulations. By integrating AI with continuous streams of sensor and historical data, these digital twins can predict performance, uncover hidden patterns, test changes virtually, and optimize systems faster than traditional experimentation alone. The result: smarter decisions, fewer costly trials, and faster scientific breakthroughs across disciplines.