Time-dependent WKB expansions for a clas
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S.M. Blinder
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Article
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1986
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Elsevier Science
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English
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A time-dependent variant of the WKB method is developed for propagators which do not have the simple Feynman structure K = jexp(iS/h) with j = j( t). The method is applied to radial propagators for N-dimensional isotropic oscillators. An expansion in ascending powers of h results in an asymptotic se