Wonderfest: Gravity as a Quantum Computer

By allowing space and time to bend, Einstein’s theory of gravity, General Relativity, explains how apples fall, how planets move, how the universe expands, and how black holes form. Quantum Mechanics, on the other hand, describes subatomic physics - in a very different language that seems incompatible with General Relativity. Yet, unlike any other classical theory in physics, General Relativity “knows” about Quantum Mechanics. Einstein’s theory allows us to compute how many quantum states a black hole has, and how much quantum information fits in the universe. Somewhat like an oracle, it has revealed to us profound properties of quantum theory that have since been rigorously proven. Amazingly, gravity encodes quantum information using sophisticated tools that are central to emerging quantum technologies.

Speaker: Raphael Bousso, UC Berkeley