Numerical studies of photon-based spectroscopies on high-Tc superconductors

A computational algorithm with efficient scaling to tens of thousands of CPUs has been applied to large scale exact diagonalization studies of small clusters. The goal is to simulate various photon-based spectra for effective single- and multi-orbital Hubbard Hamiltonians representative of the high-Tc cuprate superconductors. As an example of the utility of this method, we address the optical band gap and the spectral functions calculated from …