activity
20172026
most citedOn the difference between variational and unitary coupled cluster theories

116 citations · 255 across the 14 of their papers we have counts for

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Showing physics.chem-phShow all

7 papers · 1 filter

physics.chem-ph2026

Dynamically Corrected Bethe-Salpeter Equation Solver for Self-consistent Reference on the Matsubara Frequency Axis

Ming Wen, Gaurav Harsha, Dominika Zgid

We present a Bethe-Salpeter equation (BSE) solver based on a self-consistent reference evaluated on the Matsubara frequency axis, referred to as BSE@sc. The self-consisten…

physics.chem-ph2024★ 13 cited

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…

physics.chem-ph2024★ 1 cited

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…

physics.chem-ph2023★ 34 cited

Comparing self-consistent GW and vertex corrected G0W0 (G0W0Γ) accuracy for molecular ionization potentials

Ming Wen, Vibin Abraham, Gaurav Harsha +3

We test the performance of self-consistent GW and several representative implementations of vertex corrected G0W0 (G0W0Γ). These approaches are tested on benchmark data sets coveri…

physics.chem-ph2020★ 22 cited

Wave function methods for canonical ensemble thermal averages in correlated many-fermion systems

Gaurav Harsha, Thomas M. Henderson, Gustavo E. Scuseria

We present a wave function representation for the canonical ensemble thermal density matrix by projecting the thermofield double state against the desired number of particles. The…

physics.chem-ph2019

Thermofield theory for finite-temperature coupled cluster

Gaurav Harsha, Thomas M. Henderson, Gustavo E. Scuseria

We present a coupled cluster and linear response theory to compute properties of many-electron systems at non-zero temperatures. For this purpose, we make use of the thermofield dy…

physics.chem-ph2019★ 47 cited

Thermofield Theory for Finite-Temperature Quantum Chemistry

Gaurav Harsha, Thomas M. Henderson, Gustavo E. Scuseria

Thermofield dynamics has proven to be a very useful theory in high-energy physics, particularly since it permits the treatment of both time- and temperature-dependence on an equal…