The relationship between matrix elements
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Gordon Hug; William Rhodes
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Article
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1972
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Elsevier Science
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English
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A general expression is dcrivcd that relates the matrix elements of position and momenttim allolving for the possibility of a mixed basis. It is shown that when Born-Oppenhcimcr wavefunctions for IWO different clcctronic states arc used as basis functions, the use of the usual expression relating ma