Cluster dynamical mean field studies of two-particle response functions in the Hubbard model

Over the last twenty years, the cluster dynamical mean field theory has generated useful insight into the Hubbard model and its relation to the pseudogap and superconductivity in the two-dimensional Hubbard model. While the behavior of single-particle properties of the model is well understood, this was so far not the case for higher order correlation functions. This talk will introduce susceptibility calculations and show comparisons to a range of experimental two-particle probes in the cuprates, including NMR, neutron spectroscopy, and M-EELS. We will also show how two-particle quantities can be used to identify the leading fluctuations.