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Mean-field approach to extended Su–Schrieffer–Heeger models

✍ Scribed by Matthias Rateitzak; Thorsten Koslowski

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
253 KB
Volume
377
Category
Article
ISSN
0009-2614

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✦ Synopsis

In this work, we present a new approach to the numerical solution of the Su-Schrieffer-Heeger model. It is based on a polaron transformation that decouples nuclear and electronic degrees of freedom and a mean-field approach to the resulting electronic Hamiltonian. The emerging self consistent field procedure allows the simultaneous computation of the microscopic and electronic structure of Su-Schrieffer-Heeger models that are extended by explicitly taking electronelectron interactions into account. As an example, we apply the scheme to models of carbon nanotubes.

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