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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/23466
Title: 
Zel'dovich's method of perturbation theory in quantum mechanics
Author(s): 
Institution: 
  • Universidade de São Paulo (USP)
  • McMaster Univ
  • Universidade Estadual Paulista (UNESP)
ISSN: 
0305-4470
Abstract: 
Many years ago Zel'dovich showed how the Lagrange condition in the theory of differential equations can be utilized in the perturbation theory of quantum mechanics. Zel'dovich's method enables us to circumvent the summation over intermediate states. As compared with other similar methods, in particular the logarithmic perturbation expansion method, we emphasize that this relatively unknown method of Zel'dovich has a remarkable advantage in dealing with excited stares. That is, the ground and excited states can all be treated in the same way. The nodes of the unperturbed wavefunction do not give rise to any complication.
Issue Date: 
21-Jan-2000
Citation: 
Journal of Physics A-mathematical and General. Bristol: Iop Publishing Ltd, v. 33, n. 2, p. 283-292, 2000.
Time Duration: 
283-292
Publisher: 
Iop Publishing Ltd
Source: 
http://dx.doi.org/10.1088/0305-4470/33/2/305
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/23466
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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