Variational localized‐site cluster expansions. XI. Coherent state derivation of effective heisenberg hamiltonians Academic Article uri icon

abstract

  • A variational derivation of Heisenberg or valence‐bond models from a Hubbard (or Pariser‐Parr‐Pople) Hamiltonian is described. Calculations within a low‐order approximation are carried out for linear‐chain and graphite lattices. The results seem to be quite accurate with little computational effort when compared with other approaches. Copyright © 1983 John Wiley & Sons, Inc.

published proceedings

  • INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY

author list (cited authors)

  • Klein, D. J., Seitz, W. A., Garcia‐Bach, M. A., Picone, J. M., & Foyt, D. C..

citation count

  • 0

complete list of authors

  • KLEIN, DJ||SEITZ, WA||GARCIABACH, MA||PICONE, JM||FOYT, DC

publication date

  • July 1983

publisher