Our research delves into the physics of quantum and topological materials, combining cutting, edge experimental techniques, such as scanning tunneling microscopy, elastic/inelastic light scattering, photoluminescence, and local/non-local electrical transport in quantizing magnetic fields, to explore both their fundamental behavior and potential applications in quantum technology, including quantum computing, sensing, and advanced materials. To achieve this, we conduct experiments under extreme conditions, pushing systems to the quantum limit with temperatures down to 20 milliKelvin, static magnetic fields up to 45 Tesla, pulsed fields up to 100 Tesla, and infrared/THz radiation sourced from free-electron lasers, leveraging state-of-the-art instrumentation available at top-tier international research facilities to reveal emergent quantum phenomena and engineer materials with unprecedented functionalities.