Physicists have created a new way to observe details about the structure and composition of materials that improves upon previous methods. Conventional spectroscopy changes the frequency of light shining on a sample over time to reveal details about them. The new technique, Rabi-oscillation spectroscopy, does not need to explore a wide frequency range, so can operate much more quickly. This method could be used to interrogate our best theories of matter in order to form a better understanding of the material universe.
