Learn about the fundamentals and operational principles of Density Functional Theory (DFT) in this 41-minute quantum lunch seminar presented by Hue Jun Hao from the Centre for Quantum Technologies. Explore how this versatile theoretical framework has become an essential tool across physics, chemistry, and biology, while gaining insights into its underlying concepts and practical applications. Understand the inner workings of DFT beyond its common perception as a computational black box, and discover how this powerful methodology continues to drive cutting-edge research across multiple scientific disciplines.