PME Quantum Seminar - Francisco Machado

The ability to coherently manipulate large-scale quantum systems promises to revolutionize the way we sense, communicate, and compute. While several examples of quantum advantage have been identified, this new way of accessing and manipulating the physical world suggests the existence of a much vaster, unexplored landscape of opportunities. Exploring and mapping this landscape is crucial for translating the promise of quantum technologies into practical scientific and technological advances. In this talk, I will present a concrete example of such an opportunity, where a novel form of quantum sensing improvement arises when a quantum sensor is coherently controlled by a quantum computer. Focusing on "broadband AC sensing" — the detection of a weak oscillating signal across a large frequency bandwidth — I will describe a quantum computer-assisted sensing protocol that solves this broadband AC sensing faster than any conventional quantum sensing approach.