Real time correlations and spectral functions in numerical linked-cluster expansions

Highly precise static properties of strongly correlated fermions at finitie temperatures from numerical linked-cluster expansions have been widely used to characterize systems of ultracold atoms in optical lattices. Here, I will discuss how dynamical properties such as various spectral functions of quantum lattice models can be obtained using the method through real time, as opposed to imaginary time, correlation functions at temperatures relevant to current optical lattice experiments. Nichols et al., arXiv:1802.10018