On the determination of energy eigenvalu
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J Pasupathy
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Article
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1984
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Elsevier Science
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English
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The Shifman-Vainshtein-Zakharov method of determining the eigenvalues and coupling strengths, from the operator product expansion, for the current correlation functions is studied in the nonrelativistic context, using the semiclassical expansion. The relationship between the low-lying eigenvalues,