We present and implement a self-consistent D$\Gamma$A approach for multi-orbital models ab initio materials calculations. It is applied to the one-band Hubbard model at various interaction strengths with without doping, two-band two largely different bandwidths, SrVO$_3$. The self-energy feedback reduces critical temperatures compared dynamical mean-field theory, even zero temperature in two-di...

We present a new ab initio method for electronic structure calculations of materials at finite temperature (FT) based on the all-electron quasiparticle self-consistent GW (QPscGW) approximation and Keldysh time-loop Green's function approach. We apply the method to Si, Ge, GaAs, InSb, and diamond and show that the band gaps of these materials universally decrease with temperature in contrast wi...

Locally consistent parsing (LCP) is a context sensitive partitioning method which achieves partition consistency in (almost) linear time. When iteratively applied, LCP followed by consistent block labeling provides a powerful tool for processing strings for a multitude of problems. In this paper we summarize applications of LCP in approximating well known distance measures between pairs of stri...