Citation
A. Landau et al., Intermediate Hamiltonian Fock-space coupled-cluster method, CHEM P LETT, 313(1-2), 1999, pp. 399-403
Citations number
27
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614
→ ACNP
Volume
313
Issue
1-2
Year of publication
1999
Pages
399 - 403
Database
ISI
SICI code
0009-2614(19991105)313:1-2<399:IHFCM>2.0.ZU;2-Y
Abstract
An intermediate Hamiltonian Fock-space coupled-cluster method is presented,
following the formalism developed by Malrieu in the context of perturbatio
n theory. The method is expected to be applicable to many states not access
ible by traditional FSCC. A pilot application to a large number of excited
states of Sc+ shows good convergence and agreement with experiment to a few
hundredths of an eV, whereas the usual FSCC iterations diverge for all but
the few lowest states. (C) 1999 Elsevier Science B.V. All rights reserved.