The linked-cluster theorem in the open-s
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Debashis Mukherjee
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Article
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1986
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Elsevier Science
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English
โ 666 KB
The linked-cluster theorem (LCT) holds good in open-shell coupled-cluster theory Car incomplete model spaces provided the intermediate normalization condition (IN) for the eigenfunctions is abandoned. The crucial requirement for proving the LCT is the valence u~vers~ty of the wave operator 52. Thus