second order manybody perturbation approximations to the coupled cluster green’s function (Snijders Scientific)
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Second Order Manybody Perturbation Approximations To The Coupled Cluster Green’s Function, supplied by Snijders Scientific, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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other:Article Title: Electron Propagator Self-Energies versus Improved GW100 Vertical Ionization Energies. Article Snippet: Ab initio electron propagator (EP) methods that are free of adjustable parameters in their self-energy formulae and in the generation of their orbital bases have been applied to the calculation of the lowest vertical ionization energies (VIEs) of the GW100 set.. An improved set of standard results accompanied by irreducible representation assignments has been produced indirectly with coupledcluster singles and doubles plus perturbative triples, i.e., CCSD(T), total energy differences at initialstate geometries reoptimized (in 28 cases) with the largest applicable point groups.. The best compromises of accuracy and efficiency belong to a new generation of EP self-energies, several members of which may be derived from an intermediately normalized, Hermitized super-operator metric. Article Title: Bibliography of Jaap G. Snijders 1977–2005: List of publications Article Snippet: Article Title: An efficient pair natural orbital based configuration interaction scheme for the calculation of open-shell ionization potentials. Article Snippet: An efficient pair natural orbital based configuration interaction scheme for the calculation of open-shell ionization potentials Avijit Sen, Bernardo de Souza, Lee M. J. Huntington, Martin Krupička, Frank Neese, and Róbert Izsák Citation: The Journal of Chemical Physics 149, 114108 (2018); doi: 10.1063/1.5048688 View online: https://doi.org/10.1063/1.5048688 View Table of Contents: http://aip.scitation.org/toc/jcp/149/11 Published by the American Institute of Physics THE JOURNAL OF CHEMICAL PHYSICS 149, 114108 (2018) Article Title: A Fresh Look at the Role of the Coupling of a Discrete State with a Pseudocontinuum State in the Stabilization Method for Characterizing Metastable States. Article Snippet: The stabilization method is widely used to theoretically characterize temporary anions and other systems displaying resonances.. In this approach, information about a metastable state is encoded in the interaction of a diabatic discrete state and discretized continuum solutions, the energy of which are varied by scaling the extent of the basis set.. In this work, we identify the aspects of the coupling between the discrete state and the discretized continuum states that encode information about the existence of complex stationary points and, hence, complex resonance energies in stabilization graphs. Article Title: Branching Ratio between Proton Transfer and Electron Transfer Channels of a Bidirectional Proton-Coupled Electron Transfer. Article Snippet: Rigorous quantum dynamical study of concerted proton-coupled electron transfer (PCET) on the time scale of a few femtoseconds (fs) has been rarely reported.. Herein, a timedependent quantum wavepacket propagation method was applied to the dynamics of the chargetransfer excited electronic state of FHCl corresponding to F+HCl−.. The dynamics corresponds to a bidirectional PCET with two dissociation channels: the electron transfer (ET, generating FH+Cl) and proton transfer (PT, generating F+HCl) paths. Article Title: Elucidating Anomalous Intensity Ratios in Chlorine L-Edge X-ray Absorption Spectroscopy: Multiplet Effects and Core Rydberg Transitions. Article Snippet: A relativistic core−valence-separated equation-of-motion coupled cluster (CVS-EOM-CC) study of chlorine L2,3-edge X-ray absorption near-edge structure (XANES) spectra using CH3Cl and CH2ICl as representative molecules is reported.. The nearly identical intensity for the main features in the L2and L3-edge XANES spectra is attributed to multiplet effects and the overlap between core−valence and core Rydberg transitions.. The multiplet effects originating from the interaction between the core hole and the C−Cl σ* orbitals account for around half of the deviation of the L3 and L2 intensity ratio from the 2:1 ratio of the numbers of 2p3/2 and 2p1/2 electrons. |
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