92 citations · 336 across the 6 of their papers we have counts for
6 papers
Effect of propagator renormalization on the band gap of insulating solids
Sergei Iskakov, Alexander A. Rusakov, Dominika Zgid +1
We present momentum-resolved spectral functions and band gaps from bare and self-consistent second-order perturbation theory for insulating periodic solids. We establish that, for…
Self-energy embedding theory (SEET) for periodic systems
Alexander A. Rusakov, Sergei Iskakov, Lan Nguyen Tran +1
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…
Chebyshev polynomial representation of imaginary time response functions
Emanuel Gull, Sergei Iskakov, Igor Krivenko +2
Problems of finite-temperature quantum statistical mechanics can be formulated in terms of imaginary (Euclidean) -time Green's functions and self-energies. In the context of realis…
Exploring connections between statistical mechanics and Green's functions for realistic systems. Temperature dependent electronic entropy and internal energy from a self-consistent second-order Green's function
Alicia Rae Welden, Alexander A. Rusakov, Dominika Zgid
Including finite-temperature effects from the electronic degrees of freedom in electronic structure calculations of semiconductors and metals is desired; however, in practice it re…
Second-order Green's function perturbation theory for periodic systems
Alexander A. Rusakov, Dominika Zgid
Despite recent advances, systematic quantitative treatment of the electron correlation problem in extended systems remains a formidable task. Systematically improvable Green's func…
Local Hamiltonians for quantitative Green's function embedding methods
Alexander A. Rusakov, Jordan J. Phillips, Dominika Zgid
Embedding calculations that find approximate solutions to the Schrödinger equation for large molecules and realistic solids are performed commonly in a three step procedure involvi…