The coupled-pair approximation in a basi
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Peter R. Taylor; G.B. Bacskay; N.S. Hush; A.C. Hurley
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Article
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1976
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Elsevier Science
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English
β 691 KB
A computational method based on a rapidly convergent form of the unlinked cluster expansion is presented, &&G's CoupIed-pair approximation (CPA) is derived in a basis of partially non-orthogonal orbitals which transform each palr function to diagonal form; this produces a simple (non-variational) se