Joaquin Drut is a quantum many-particle theorist by training. That means that Dr. Drut spends most of his time thinking about how to calculate and predict the physics of systems of many particles, when they are governed by the laws of quantum mechanics. Some of those systems are studied in labs on Earth, but the most interesting ones are deep inside the most massive stars, where the elements are created at unimaginably high densities and temperatures. Dr. Drut regularly teaches a course on computational and mathematical methods for physics majors, where the importance of abstract linear algebra and generalized Fourier analysis as concepts underlying physical laws are emphasized.