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European physical journal H, 2013-09, Vol.38 (4), p.519-534
Ort / Verlag
Berlin/Heidelberg: Springer Berlin Heidelberg
Erscheinungsjahr
2013
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
The response of molecular systems to external fields was one of the first areas studied after development of the new quantum mechanics. Early work by Kirkwood and Buckingham developed polarisability lower bounds that are still used today. This work uses an inequality proposed by Linderberg to develop a treatment of polarisability lower bounds that unifies the work of Kirkwood and Buckingham with Hylleraas’ variational perturbation theory. In particular, the prehistory of the works of Kirkwood and Buckingham is described. Numerical examples are presented to demonstrate the convergence of approximate wavefunctions in the confined atom problem. The applicability of dimensional scaling and its utility in the analysis of confined systems are also discussed.