The Recurrent Variational Approach applied to the Electronic Structure of Conjugated Polymers

S. Pleutin; E. Jeckelmann; M. A. Martin-Delgado; G. Sierra

The Recurrent Variational Approach applied to the Electronic Structure of Conjugated Polymers

Condensed Matter 2007-05-23 v2

Authors: S. Pleutin , E. Jeckelmann , M. A. Martin-Delgado , G. Sierra

Abstract

In this note, first the Recurrent Variational Approach (RVA) is introduced by using as example a non-trivial spin-model, the spin-1/2 antiferromagnetic two-leg-ladder. Then, a first application of this scheme to the electronic structure of conjugated polymers is proposed. An analogy between the two-leg ladder and the dimerized chain described by the Extended Peierls-Hubbard Hamiltonian is underlined and comparisons are made with DMRG calculations. The proposed ansatz is useful to get some analytical insight and it is a good starting point for further improvements using the RVA.

Keywords

recurrent variational approach conjugated polymers electronic structure two-leg ladder extended peierls-hubbard model dmrg

Cite

@article{arxiv.cond-mat/9908062,
  title  = {The Recurrent Variational Approach applied to the Electronic Structure of Conjugated Polymers},
  author = {S. Pleutin and E. Jeckelmann and M. A. Martin-Delgado and G. Sierra},
  journal= {arXiv preprint arXiv:cond-mat/9908062},
  year   = {2007}
}

Comments

19 pages, 10 eps figs. Submitted to Progress in Theoretical Chemistry and Physics

The Recurrent Variational Approach applied to the Electronic Structure of Conjugated Polymers

Abstract

Keywords

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