Rayleigh-Schrodinger perturbation theory with a non-Hermitian perturbation

M. Cohen; T. Feldmann

doi:10.1088/0022-3700/15/16/006

Rayleigh-Schrodinger perturbation theory with a non-Hermitian perturbation

M. Cohen^*, T. Feldmann

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

In the presence of a non-Hermitian perturbation, the total energy may be computed up to order 2n+1 from a knowledge of the wavefunction up to order n only, provided that the Hermitian and anti-Hermitian wavefunction components of each order are determined separately.

Original language	English
Article number	006
Pages (from-to)	2563-2568
Number of pages	6
Journal	Journal of Physics B: Atomic and Molecular Physics
Volume	15
Issue number	16
DOIs	https://doi.org/10.1088/0022-3700/15/16/006
State	Published - 1982

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title = "Rayleigh-Schrodinger perturbation theory with a non-Hermitian perturbation",

abstract = "In the presence of a non-Hermitian perturbation, the total energy may be computed up to order 2n+1 from a knowledge of the wavefunction up to order n only, provided that the Hermitian and anti-Hermitian wavefunction components of each order are determined separately.",

author = "M. Cohen and T. Feldmann",

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AU - Cohen, M.

AU - Feldmann, T.

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AB - In the presence of a non-Hermitian perturbation, the total energy may be computed up to order 2n+1 from a knowledge of the wavefunction up to order n only, provided that the Hermitian and anti-Hermitian wavefunction components of each order are determined separately.

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Rayleigh-Schrodinger perturbation theory with a non-Hermitian perturbation

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