Application of conventional equation of motion methods to the Tomonaga model
β Scribed by H.U. Everts; H. Schulz
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 322 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0038-1098
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π SIMILAR VOLUMES
The equationof-motion coupled-cluster method (EOM-CCSD) and its quadratic CI (EOM-QCISD) variant for excited states have been implemented in the ACES II program system. Results for open-and closed-shell reference states are reported for Be, N2, CO, 02, and 0,. The results show that EOM-CCSD and EOM-
harmonic responses. For m s 0.25 and a fortiori for lower values of m, good agreement can be noted between results obtained with the use of the HB technique and the perturbation method. Only a slight difference appears around the resonance frequency. As m increases, HB responses become less smooth.