期刊
JOURNAL OF CHEMICAL PHYSICS
卷 113, 期 6, 页码 2145-2158出版社
AMER INST PHYSICS
DOI: 10.1063/1.482027
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We calculate the L=0 ground and excited state energies for the rare gas trimers He-3, Ne-3, and Ar-3. An adiabatic representation is adopted to solve the nuclear Schrodinger equation, in which the Schrodinger equation in hyperangular coordinates is solved at a series of fixed hyper-radii using B splines. We compare results obtained in a strict adiabatic approximation with nonperturbative coupled-adiabatic-channel calculations. Structural properties such as the pair and angle distributions are monitored as functions of the hyper-radius. These structural studies pinpoint the locus of configurational changes that occur as the trimer fragments into a diatom plus an atom. Analysis of the angular channel functions and their associated radial components permits an approximate classification of the vibrational spectrum. (C) 2000 American Institute of Physics. [S0021-9606(00)00230-0].
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