On the length, velocity and acceleration expressions for the calculation of accurate oscillator strengths in many-electron systems

✍ Scribed by Cleanthes A. Nicolaides; Donald R. Beck

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 799 KB
• Volume: 35
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(75)85314-0

✦ Synopsis

The problem of deciding whWt of three equivalent forms of ekcrric dipok transition probabZ!ities is tl?e most "proper" or "accurate" to us-e, has been discussed in secant prtpe,s from vzuious potits of view. Here we examine this question and also cer!in conditions which haye to be saWied far the three forms to give the same results. Regarding the question of accurricy, we suggest that, on the whole, arguments based on the importance of regions of wnfiaratior! space are still the most convincing, iu spite of receilt attempts to select only one form as the proper one. A number of May-body cdauIationsare carried out for tra;lsitions in BI, CII, 01, OIV and SM. For the CII, OIV ls22s22p *P" -Is22s2pz 2D osciltator