Public conference as part of the Search for a professor in Theoretical physics.

Summary: Nonlinear spectroscopy has shown to be an invaluable tool for studying quantum materials including superconductors, antiferromagnets, and insulators, but it is often limited to spatial resolution of millimeters or more. Noise spectroscopy using local spin qubits is a promising new technique which can probe the excitation spectrum of a quantum material with 10’s of nm scale resolution. However, this technique has been mostly confined to studying the linear response regime. In this talk I will provide an example of the power of noise spectroscopy for detecting critical fluctuations in two-dimensional superconductors, before unveiling a new set of protocols which can be used to study nonlinear correlation functions with high spatial resolution. I will then show how this technique can be used to study critical fluctuations in quantum materials before presenting an outlook for the future.