Quantum Information and Foundations of Physics

Our group studies the foundations of physics from an information-theoretic perspective. The main tool and inspiration is Quantum Information Theory, which we apply to a variety of questions: what are the laws of thermodynamics for very small or strongly correlated systems? Can we derive the abstract formalism of quantum theory fromsimple principles? How are detector click probabilities constrained by spatiotemporal symmetries, and what does this tell us about how space, time and quantum theory constrain each other? What is the nature of reality and our place in it?

Aiming for complete mathematical rigor and conceptual clarity, our research touches mathematics, physics, computer science, and philosophy. Since we prove theorems with paper and pencil, our work can broadly be classified as Mathematical Physics.