Frank A, Lemus R, Pérez-Bernal F, Bijker R
Instituto de Ciencias Nucleares, UNAM, Circuito Exterior, C.U., México, D.F., 04510, México
J Mol Spectrosc. 1999 Aug;196(2):329-334. doi: 10.1006/jmsp.1999.7859.
Spurious states arise naturally in the description of molecular vibrational excitations. In the harmonic approximation such states can be projected out from the physical space exactly. This is in general not the case when anharmonic interactions are considered. We show that within the framework of the symmetry, adapted vibron models which include anharmonicities from the outset, these states can be removed in an exact fashion. Copyright 1999 Academic Press.
在分子振动激发的描述中，赝态自然出现。在简谐近似下，此类态可从物理空间中精确投影出去。然而，当考虑非谐相互作用时，情况通常并非如此。我们表明，在对称性适配振子模型的框架内，该模型从一开始就包含非谐性，这些态可以以精确的方式消除。版权所有1999年学术出版社。
