We present numerical results for the equation of state of an infinite chain of hydrogen atoms.
A variety of modern many-body methods are employed, with exhaustive cross-checks and …

Model-independent compact representations of imaginary-time data are presented in terms
of the intermediate representation (IR) of analytical continuation. We demonstrate the …

Efficient ab initio calculations of correlated materials at finite temperatures require compact
representations of the Green's functions both in imaginary time and in Matsubara frequency …

We present Maxent, a tool for performing analytic continuation of spectral functions using the
maximum entropy method. The code operates on discrete imaginary axis datasets (values …

We present an efficient basis for imaginary time Green's functions based on a low-rank
decomposition of the spectral Lehmann representation. The basis functions are simply a set …

We present an implementation of the self-energy embedding theory (SEET) for periodic
systems and provide a fully self-consistent embedding solution for a simple realistic periodic …

Despite recent advances, systematic quantitative treatment of the electron correlation
problem in extended systems remains a formidable task. Systematically improvable Green's …

We discuss the analytic and diagrammatic structure of ionization potential (IP) and electron
affinity (EA) equation-of-motion coupled-cluster (EOM-CC) theory, in order to put it on equal …

The cost of the exact solution of the many-electron problem is believed to be exponential in
the number of degrees of freedom, necessitating approximations that are controlled and …

We propose a method to improve the computational and memory efficiency of numerical
solvers for the nonequilibrium Dyson equation in the Keldysh formalism. It is based on the …