Abstract
A network model is developed for electrons in molecules and crystals. Wavefunctions and energy levels can be calculated exactly. A network which is topologically equivalent to that of the molecule or crystal of interest is constructed. One-dimensional bonds connect various node points. The potential V(x) = −V0 sech2 γx is postulated to act along each bond so that a potential well exists at each node point (atom) of the network. For some values of V0 the wavefunctions are elementary while generally they are hypergeometric functions. When the parameter γ is very large, the model is essentially the tight binding model and, when it is very small, one has the free-electron network model investigated by Ruedenberg and Scherr, Griffith, Coulson, and others. The density of states, energy band structure, and other features are discussed.
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Dates
Type | When |
---|---|
Created | 21 years, 6 months ago (Feb. 10, 2004, 12:17 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 6, 2024, 3:49 p.m.) |
Indexed | 3 weeks, 5 days ago (Aug. 6, 2025, 8:30 a.m.) |
Issued | 55 years, 7 months ago (Feb. 1, 1970) |
Published | 55 years, 7 months ago (Feb. 1, 1970) |
Published Print | 55 years, 7 months ago (Feb. 1, 1970) |
@article{Montroll_1970, title={Quantum Theory on a Network. I. A Solvable Model Whose Wavefunctions Are Elementary Functions}, volume={11}, ISSN={1089-7658}, url={http://dx.doi.org/10.1063/1.1665178}, DOI={10.1063/1.1665178}, number={2}, journal={Journal of Mathematical Physics}, publisher={AIP Publishing}, author={Montroll, Elliott W.}, year={1970}, month=feb, pages={635–648} }