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dc.creatorBalasubramanian, T. K.en_US
dc.creatorBellary, V. P.en_US
dc.date.accessioned2006-06-15T18:08:46Z
dc.date.available2006-06-15T18:08:46Z
dc.date.issued1988en_US
dc.identifier1988-MF-6en_US
dc.identifier.urihttp://hdl.handle.net/1811/17498
dc.description$^{1}$ E. Wigner and E.E. Witmer, Z. Physik 51, 859 (1928). $^{2}$ G. Herzberg, Molecular Spectra and Molecular Structure Vol.1 (Spectra of Diatomic Molecules) Van Nostrand, New York (1950). $^{3}$ L.D. Landau and E.M. Lifshitz, Quantum Mechanics, Pergamon Press, London (1965).en_US
dc.descriptionAuthor Institution: Spectroscopy Division, Bhabha Atomic Research Centre Modular Laboratoriesen_US
dc.description.abstractThe rules for building the manifold of electronic states of a diatomic molecule from those of the separated atoms were originally given by Wigner and $Witmer^{1}$. Most of these $rules^{2}$ seem intuitively plausible and their validity is readily $demonstrated^{3}$. An exception is the derivation of the terms for a homonuclear diatomic molecule from the separated atoms in identical atomic states. Here the answer to the important question of the u or g character of the resulting molecular state is not so obvious. In the original $paper^{1}$ this point has been settled by resorting to group theoretical arguments. We have been able to show that the same results could be obtained by invoking a simple model which reduces the problem to one akin to the Heitler-London treatment of the $H_{2} molecule^{2}$. In the limit of strong spin-orbit coupling in the atoms, the model can be extended readily to derive Hund's case (c) molecular states.en_US
dc.format.extent162853 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleON THE WIGNER - WITMER CORRELATION RULES IN DIATOMIC MOLECULESen_US
dc.typearticleen_US


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