High-precision evaluation of the Vibrational spectra of long-range molecules

Details High-precision evaluation of the Vibrational spectra of long-range molecules High-precision evaluation of the Vibrational spectra of long-range molecules

2001-03-13

arxiv.org/abs/quant-ph/0103066v1

Physics

Quantum Physics

19 pages, 5 figures and 6 tables. To be published in the G. Herzberg memorial issue, Can. J. Physics Vol. 79 (2001)

Scientific paper

10.1139/cjp-79-2-3-109

Vibrational spectra of long-range molecules are determined accurately and to arbitrary accuracy with the Canonical Function Method. The energy levels of the $0^-_g$ and $1_u$ electronic states of the $^{23}{\rm Na}_2$ molecule are determined from the Ground state up to the continuum limit. The method is validated by comparison with previous results obtained by Stwalley et al. using the same potential and Trost et al. whose work is based on the Lennard-Jones potential adapted to long-range molecules.

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