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Alireza Marefat Khah

Researcher at Ruhr University Bochum

Publications -  11
Citations -  609

Alireza Marefat Khah is an academic researcher from Ruhr University Bochum. The author has contributed to research in topics: Excited state & Wave function. The author has an hindex of 6, co-authored 10 publications receiving 251 citations.

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COSMO-RI-ADC(2) excitation energies and excited state gradients.

TL;DR: An implementation of analytic gradients for electronically excited states for the algebraic-diagrammatic construction through second order, ADC(2), in combination with the conductor-like screening model (COSMO) as an implicit solvent model is presented.
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Avoiding Electron Spill-Out in QM/MM Calculations on Excited States with Simple Pseudopotentials.

TL;DR: This work proposes transferable atomic all-electron pseudopotentials that can readily be combined with most MM force-fields to avoid electron spill-out and shows that the largest contribution to residual deviations from full QM calculations is caused by the missing London dispersion interaction.
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Analytic Excited State Gradients for the QM/MM Polarizable Embedded Second-Order Algebraic Diagrammatic Construction for the Polarization Propagator PE-ADC(2)

TL;DR: It is demonstrated that the ground state geometries of the full quantum mechanical calculation for the supermolecule can be well reproduced and the environment effects are captured qualitatively correctly, and energy gaps between the ground and excited states are obtained with sufficient accuracy.
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Polarizable Embedded RI-CC2 Method for Two-Photon Absorption Calculations

TL;DR: A novel polarizable embedded resolution-of-identity coupled cluster singles and approximate doubles (PERI-CC2) method for calculation of two-photon absorption (TPA) spectra of large molecular systems and shows that it is well-suited and efficient for calculations on proteins with medium-sized chromophores.