244 citations · 2.2k across the 66 of their papers we have counts for
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Tensor hypercontraction for self-consistent vertex corrected GW with static and dynamic screening; applications to molecules and solids with superexchange
Pavel Pokhilko, Chia-Nan Yeh, Miguel A. Morales +1
For molecules and solids, we developed efficient MPI-parallel algorithms for evaluating the second-order exchange term with bare, statically screened, and dynamically screened inte…
Green/WeakCoupling: Implementation of fully self-consistent finite-temperature many-body perturbation theory for molecules and solids
Sergei Iskakov, Chia-Nan Yeh, Pavel Pokhilko +10
The accurate ab initio simulation of molecules and periodic solids with diagrammatic perturbation theory is an important task in quantum chemistry, condensed matter physics, and ma…
Quasiparticle and fully self-consistent GW methods: an unbiased analysis using Gaussian orbitals
Gaurav Harsha, Vibin Abraham, Ming Wen +1
We present a comparison of various approximations to self-consistency in the GW method, including the one-shot G0W0 method, different quasiparticle self-consistency schemes, and th…
Performance of wave function and Green's functions based methods for non equilibrium many-body dynamics
Cian C. Reeves, Gaurav Harsha, Avijit Shee +5
Theoretical descriptions of non equilibrium dynamics of quantum many-body systems essentially employ either (i) explicit treatments, relying on truncation of the expansion of the m…
Tensor hypercontraction for fully self-consistent imaginary-time GF2 and GWSOX methods: theory, implementation, and role of the Green's function second-order exchange for intermolecular interactions
Pavel Pokhilko, Chia-Nan Yeh, Miguel A. Morales +1
We apply tensor hypercontraction (THC) to reduce the computational scaling of expensive fully self-consistent Green's function methods. We present an efficient MPI-parallel algorit…
Large Exciton Binding Energy in the Bulk van der Waals Magnet CrSBr
Shane Smolenski, Ming Wen, Qiuyang Li +13
Excitons, bound electron-hole pairs, influence the optical properties in strongly interacting solid state systems. Excitons and their associated many-body physics are typically mos…
Challenges with relativistic GW calculations in solids and molecules
Gaurav Harsha, Vibin Abraham, Dominika Zgid
For molecules and solids containing heavy elements, accurate electronic structure calculations require accounting not only for electronic correlations but also for relativistic eff…
Relativistic fully self-consistent for molecules: Total energies and ionization potentials
Vibin Abraham, Gaurav Harsha, Dominika Zgid
The fully self-consistent (sc) method with the iterative solution of Dyson equation provides a consistent approach for describing the ground and excited states without any…