Princeton University PCTS Lecture
When Atoms Compute: Quantum Computing, Simulation, and Sensing with Atoms, Ions, and Light
Abstract: Quantum mechanics governs nature at its smallest scales—but today we can engineer that quantum world by creating and controlling entanglement, the unique fingerprint of quantum physics. Using laser-controlled atoms and ions, researchers can build programmable quantum devices that compute beyond classical limits, emulate complex quantum matter, and approach fundamental quantum limits. This talk gives a non-technical overview of leading platforms, from trapped-ion processors to quantum simulators based on ultracold atoms. We illustrate the ideas with snapshots from current research: string-breaking dynamics inspired by high-energy physics, using simulators to guide materials design, methods to validate what quantum devices are doing when classical calculation is no longer feasible, and an outlook toward programmable quantum sensors.