SOLITONS IN THE ONE-DIMENSIONAL PEIERLS-HUBBARD MODEL

Authors
JECKELMANN E BAERISWYL D
Citation
E. Jeckelmann et D. Baeriswyl, SOLITONS IN THE ONE-DIMENSIONAL PEIERLS-HUBBARD MODEL, Synthetic metals, 69(1-3), 1995, pp. 651-653
Citations number
10
Categorie Soggetti
Physics, Condensed Matter","Metallurgy & Metallurigical Engineering
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
69
Issue
1-3
Year of publication
1995
Pages
651 - 653
Database
ISI
SICI code
0379-6779(1995)69:1-3<651:SITOPM>2.0.ZU;2-Z
Abstract
A variational method is used to study solitons in the framework of the one-dimensional Peierls-Hubbard model. Both the structure of a neutra l soliton and the soliton-induced optical transitions are calculated. The comparison of the results with exact numerical calculations and ex perimental data on trans-polyacetylene confirm not only the validity o f the variational approach, but also the necessity of including correl ation effects explicitly.