A new method of approach is proposed for the problem of electronic transitions accompanied by the excitation of molecular or crystal vibrations. The Hamiltonian of the normal vibrations is expressed in terms of the so-called creation and annihilation operators, and the change in the equilibrium nuclear distances and vibrational frequencies are represented by transformations which are also expressed in terms of these operators. Calculations are made for some typical cases.
Received: 1959-12-11
Published Online: 2014-6-2
Published in Print: 1960-2-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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