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Ambiguities in the Effective Stark Hamiltonian

✍ Scribed by V.I. Perevalov; M.P. Coquard; M. Loete

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
675 KB
Volume
169
Category
Article
ISSN
0022-2852

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✦ Synopsis

We show that a Stark Hamiltonian can be transformed to an effective one which is blockdiagonal with respect to polyads of interacting vibrational states. The transformation does not modify the block diagonal parameters of the effective dipole moment operator, whereas parameters of the polarizability tensor have additional contributions. These contributions are however small. The effective Stark Hamiltonian describing the quadratic Stark effect has been written for 0100 and 0001 interacting vibrational states of tetrahedral (X Y_{4}) molecules. We found a strong correlation between the effective dipole moment parameters and the parameters of the effective polarizability tensor in this Hamiltonian. To remove this correlation, the effective Stark Hamiltonian has been transformed to reduced form. Numerical tests of these predictions have been performed. 1995 Academic Press. Inc.

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