Two perturbations in the presence of degeneracy

C. D.H. Chisholm; K. B. Lodge

doi:10.1016/0009-2614(72)80374-9

Two perturbations in the presence of degeneracy

C. D.H. Chisholm, K. B. Lodge

Chemical Engineering

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Abstract

The second-order energy in Rayleigh-Schrödinger single perturbation theory for a degenerate level with two perturbations is written in "double perturbation" form. The difficulties in formal double perturbation theory are avoided.

Original language	English (US)
Pages (from-to)	571-574
Number of pages	4
Journal	Chemical Physics Letters
Volume	15
Issue number	4
DOIs	https://doi.org/10.1016/0009-2614(72)80374-9
State	Published - Sep 1 1972

Bibliographical note

Funding Information:
We are grateful to Professor S.T. Epstein for helpful discussions on this problem. One of us (K.B.L.) would like to acknowledge the support of the Science Research Council (U.K.). We would also like to acknowledge the support of the U.S. Army through its European Research Office.

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title = "Two perturbations in the presence of degeneracy",

abstract = "The second-order energy in Rayleigh-Schr{\"o}dinger single perturbation theory for a degenerate level with two perturbations is written in {"}double perturbation{"} form. The difficulties in formal double perturbation theory are avoided.",

author = "Chisholm, {C. D.H.} and Lodge, {K. B.}",

note = "Funding Information: We are grateful to Professor S.T. Epstein for helpful discussions on this problem. One of us (K.B.L.) would like to acknowledge the support of the Science Research Council (U.K.). We would also like to acknowledge the support of the U.S. Army through its European Research Office.",

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AU - Chisholm, C. D.H.

AU - Lodge, K. B.

N1 - Funding Information: We are grateful to Professor S.T. Epstein for helpful discussions on this problem. One of us (K.B.L.) would like to acknowledge the support of the Science Research Council (U.K.). We would also like to acknowledge the support of the U.S. Army through its European Research Office.

PY - 1972/9/1

Y1 - 1972/9/1

N2 - The second-order energy in Rayleigh-Schrödinger single perturbation theory for a degenerate level with two perturbations is written in "double perturbation" form. The difficulties in formal double perturbation theory are avoided.

AB - The second-order energy in Rayleigh-Schrödinger single perturbation theory for a degenerate level with two perturbations is written in "double perturbation" form. The difficulties in formal double perturbation theory are avoided.

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VL - 15

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4

ER -

Two perturbations in the presence of degeneracy

Abstract

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