Regularized quasiparticle energies $\reps{p}{\GW}$ as functions of the internuclear distance $\RHH$ (in \si{\angstrom}) of \ce{H2} at the {\GOWO}@HF/6-31G level for $\eta=\SI{100}{\milli\eV}$ (top), $\eta=\SI{1}{\hartree}$ (center), and $\kappa=\SI{1}{\hartree}$ (bottom).
\caption{Difference between non-regularized and regularized quasiparticle energies $\eps{p}{\GW}-\reps{p}{\GW}$ computed with $\eta=\SI{0.1}{\hartree}$ (left), $\eta=\SI{1}{\hartree}$ (center), and $\eta=\SI{10}{\hartree}$ (right) as functions of the internuclear distance $\RHH$ (in \si{\angstrom}) of \ce{H2} at the {\GOWO}@HF/6-31G level. }
\caption{Difference between non-regularized and regularized quasiparticle energies $\eps{p}{\GW}-\reps{p}{\GW}$ computed with computed with $\kappa=\SI{0.1}{\hartree}$ (left), $\kappa=\SI{1}{\hartree}$ (center), and $\kappa=\SI{10}{\hartree}$ (right) as functions of the internuclear distance $\RHH$ (in \si{\angstrom}) of \ce{H2} at the {\GOWO}@HF/6-31G level. }
\caption{Ground-state potential energy surface of \ce{F2} around its equilibrium geometry obtained at various levels of theory with the cc-pVDZ basis set for $\kappa=\SI{0.1}{\hartree}$ (left), $\eta=\SI{1}{\hartree}$ (center), and $\eta=\SI{10}{\hartree}$ (right).}
\caption{Ground-state potential energy surface of \ce{F2} around its equilibrium geometry obtained at various levels of theory with the cc-pVDZ basis set for $\kappa=\SI{0.1}{\hartree}$ (left), $\kappa=\SI{1}{\hartree}$ (center), and $\kappa=\SI{10}{\hartree}$ (right).
For $\kappa=\SI{0.1}{\hartree}$, the BSE@ev$GW$@HF calculations do not converge for numerous values of $R_{\ce{F-F}}$ and are not shown in this figure.
For $\kappa=\SI{10}{\hartree}$, the black and gray curves are superposed.}