First analytic nuclear gradients derived and implemented for BSE@G0W0, validated on excited-state geometries and adiabatic energies against wavefunction benchmarks.
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Active-space DEA-EOMCCSDT(4p-2h) and DIP-EOMCCSDT(4h-2p) methods recover full parent results for methylene, trimethylenemethane, and 23 atoms/molecules at reduced cost.
Parquet theory is formalized for molecules with a static kernel approximation that treats all scattering channels equally and is tested on ionization potentials of small systems.
A CAP-GW method is developed for approximating positions and lifetimes of shape resonances in small molecular anions, validated on N2^-, CO^-, and others with accuracy comparable to wavefunction-based approaches.
citing papers explorer
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Fully Analytic Nuclear Gradients for the Bethe--Salpeter Equation
First analytic nuclear gradients derived and implemented for BSE@G0W0, validated on excited-state geometries and adiabatic energies against wavefunction benchmarks.
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Double Electron Attachment and Double Ionization Potential Equation-of-Motion Coupled-Cluster Approaches with Full and Active-Space Treatments of 4-Particle-2-Hole and 4-Hole-2-Particle Excitations and Three-Body Clusters
Active-space DEA-EOMCCSDT(4p-2h) and DIP-EOMCCSDT(4h-2p) methods recover full parent results for methylene, trimethylenemethane, and 23 atoms/molecules at reduced cost.
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Parquet theory for molecular systems: Formalism and static kernel parquet approximation
Parquet theory is formalized for molecules with a static kernel approximation that treats all scattering channels equally and is tested on ionization potentials of small systems.
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Complex Absorbing Potential Green's Function Methods for Resonances
A CAP-GW method is developed for approximating positions and lifetimes of shape resonances in small molecular anions, validated on N2^-, CO^-, and others with accuracy comparable to wavefunction-based approaches.