Huestis, David Lee (1973) I. The projected GI method and the excited states of H_2. II. A superposition principle for Seigert resonant states. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:11052009-132233582
The simplest orbital wavefunction that adequately describes the dissociation of the excited states of homonuclear diatomic molecules must involve a spatial symmetry projection operator. The use of such a wavefunction has been developed in detail and applied to the excited states of the hydrogen molecule. It was found that the advantages of an independent-particle description are enhanced considerably by spatial projection. The low-lying Σ states of H_2 are explained unambiguously and convincingly in terms of orbital character based on the model of the one-electron heteronuclear diatomics. Recent experimental work in electron impact spectroscopy has illustrated that short-lived negative-ion resonances must play an important role. In an attempt to show that such resonances form a natural and complete characterization of the scattering process, the properties of the resonant states defined by Siegert have been investigated. In specific, a superposition principle for Siegert states was found, which provides a complete description of any quantum mechanical event involving a potential of finite range.
|Item Type:||Thesis (Dissertation (Ph.D.))|
|Degree Grantor:||California Institute of Technology|
|Division:||Chemistry and Chemical Engineering|
|Thesis Availability:||Restricted to Caltech community only|
|Defense Date:||19 September 1972|
|Default Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||17 Nov 2009 23:27|
|Last Modified:||26 Dec 2012 03:18|
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