Speaker
Description
Spectroscopy constitutes an important family of experiments to study condensed matter systems, where one obtains information about a material by shining photons at it and measuring the intensity of the scattered photons. However the modern AMO toolbox allows one to measure not just the intensity, but also other observables such as second order coherence (g(2)) and homodyne signal. What these measurements reveal about the condensed matter system being studied is a nontrivial question. In this work, we develop a framework to determine which correlation functions of the material are encoded in such measurements. We specialize to the Hubbard model at half-filling and find that a slew of dynamical spin-spin and spin-charge correlations can be measured this way. Our framework can be used straightforwardly by an experimentalist to determine the corresponding correlations for their matter system, provided they know its microscopic light-matter interaction Hamiltonian.
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