PL EN


Preferences help
enabled [disable] Abstract
Number of results
2000 | 97 | 3 | 381-384
Article title

Correlation Induced Optimization of Wave Functions: the Hubbard Chain

Content
Title variants
Languages of publication
EN
Abstracts
EN
We determine the explicit form of the single-particle Wannier functions {w_{i}(r)} appearing in the parameters of quantum models. The method is illustrated on the example of the Hubbard chain, for which we derive the renormalized wave equation starting from a variational principle and by treating the system ground state energy as a functional of {w_{i}(r)} and their derivatives. In this manner, the optimized basis is obtained only after the electronic correlations have been included in the rigorous Lieb-Wu solution. The results for the ground state energy and the size of the renormalized s-type orbitals, both as a function of interatomic distance, are calculated explicitly.
Keywords
EN
Publisher

Year
Volume
97
Issue
3
Pages
381-384
Physical description
Dates
published
2000-03
Contributors
author
  • Marian Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
author
  • Marian Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
author
  • Institute of Physics, Tadeusz Kościuszko Technical University, Podchorążych 1, 30-084 Kraków, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv97z305kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.