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Wigner's (2n+ 1) rule in MBPT

 

作者: Vladimír Kvasnička,   Viliam Laurinc,   Stanislav Biskupič,  

 

期刊: Molecular Physics  （Taylor Available online 1980）
卷期: Volume 39, issue 1  

页码: 143-161

 

ISSN:0026-8976

 

年代: 1980

 

DOI:10.1080/00268978000100121

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Wigner's (2n+ 1) rule (stating that the 2nth and/or (2n+ 1)th order perturbation contributions to a non-degenerate energy can be evaluated from a knowledge of the wavefunction throughnth order) is applied to many-body perturbation theory (MBPT). This approach essentially simplifies the calculation of correlation energy to an order higher than the third and reduces the number of required diagrams.

 

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