On the ground state of solids with strong electron correlations

Citation
P. Fulde et al., On the ground state of solids with strong electron correlations, CHEM P LETT, 299(5), 1999, pp. 481-487
Citations number
24
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
299
Issue
5
Year of publication
1999
Pages
481 - 487
Database
ISI
SICI code
0009-2614(19990116)299:5<481:OTGSOS>2.0.ZU;2-K
Abstract
We formulate the calculation of the ground-state wavefunction and energy of a system of strongly correlated electrons in terms of scattering matrices. A hierarchy of approximations is introduced which results in an incrementa l expansion of the energy. The present approach generalizes previous work d esigned for weakly correlated electronic systems. (C) 1999 Elsevier Science B.V. All rights reserved.