Reply to comment on: Coupled cluster approach or quadratic configuration interaction?
نویسندگان
چکیده
منابع مشابه
Analysis of Coupled Cluster and Quadratic Configuration Interaction Theory in Terms of Sixth-Order Perturbation Theory
The energy at sixth-order Mnller-Plesset (MP6) perturbation theory is given and dissected into 36 sizeconsistent energy contributions resulting from single ( S ) , double ( D), triple (T ), quadruple ( Q ) , pentuple (P), and hextuple (H) excitations. It is shown that MP6 is an O ( N 9 ) method, but less costly approximations to M P ~ are possible. M P ~ is used to analyze and compare coupled c...
متن کاملCoupled-cluster and configuration-interaction calculations for heavy nuclei.
We compare coupled-cluster (CC) and configuration-interaction (CI) results for (56)Ni obtained in the pf-shell basis, focusing on practical CC approximations that can be applied to systems with dozens or hundreds of correlated fermions. The weight of the reference state and the strength of correlation effects are controlled by the gap between the f(7/2) orbit and the f(5/2), p(3/2), p(1/2) orbi...
متن کاملReply to the Comment
In the comment [1], Zanardi and Rasetti argue that several claims in our recent letter [2] are questionable. Here we show these claims remain true. Our points are that (i) the Hamiltonian (1) in Ref. [2] describes amplitude damping as well as phase damping; (ii) the free-Hamiltonian-elimination (FHE) has feasible implementation in practice and there exists a simple FHE procedure which is design...
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on " Disentangling residence time and temperature sensitivity of microbial decomposition in a global soil carbon model " The authors used a reduced complexity model (one pool soil decomposition with a temperature and moisture dependency) to study the sensitivity of the carbon stock projections to first order uncertainties. The relative contributions of decomposition (k) and temperature sensitiv...
متن کاملReply to Rachlin’s comment
The primary purpose of our article was to demonstrate unambiguously that matching does not necessarily follow from maximization of overall reinforcement rate, as appears to have been suggested by some writers. Evidently, Rachlin (1979) now accepts that as some slight contribution, since he raises the question, "But are there switching patterns for which matching and maximizing are the same?" wh...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 1990
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.459112