EIGENVALUES OF MODEL HAMILTONIAN MATRICES FROM SPECTRAL DENSITY DISTRIBUTION MOMENTS - THE HEISENBERG SPIN-HAMILTONIAN

Authors
KARWOWSKI J BIELINSKAWAZ D JURKOWSKI J
Citation
J. Karwowski et al., EIGENVALUES OF MODEL HAMILTONIAN MATRICES FROM SPECTRAL DENSITY DISTRIBUTION MOMENTS - THE HEISENBERG SPIN-HAMILTONIAN, International journal of quantum chemistry, 60(1), 1996, pp. 185-193
Citations number
20
Categorie Soggetti
Chemistry Physical
Journal title
International journal of quantum chemistry → ACNP
ISSN journal
00207608
Volume
60
Issue
1
Year of publication
1996
Pages
185 - 193
Database
ISI
SICI code
0020-7608(1996)60:1<185:EOMHMF>2.0.ZU;2-V
Abstract
An approach aimed at approximating the extreme (the lowest and/or the highest) eigenvalues of matrices representing many-electron model Hami ltonians from a knowledge of several spectral density distribution mom ents is proposed. A detailed discussion of the Heisenberg spin Hamilto nian spectrum is presented as an example of an application. (C) 1996 J ohn Wiley & Sons, Inc.