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A compact model system for electron–phonon calculations in discotic materials

✍ Scribed by Olga Kruglova; Fokko M. Mulder; Arek Kotlewski; Stephen J. Picken; Stewart Parker; Mark R. Johnson; Gordon J. Kearley

Book ID
108088857
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
257 KB
Volume
330
Category
Article
ISSN
0301-0104

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📜 SIMILAR VOLUMES

Quantum lattice fluctuations in a model
Quantum lattice fluctuations in a model electron–phonon system
✍ Q. Wang; H. Zheng 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 128 KB

An analytical approach, based on the unitary transformation method, has been developed to study the effect of quantum lattice fluctuations on the ground state of a model electron-phonon system. To study nonadiabatic case, the Green's function method is used to implement the perturbation treatment. T

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## Abstract The spin projected extended Hartree‐Fock equations for successive optimization of the orbitals are derived for the four‐electron case and applied to butadiene in the PPP approximation. The method shows an excellent convergence and gives 91.4% of the correlation energy for the given mode