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The WKB approximation - Heidelberg University
which will bring us aryv close to the true solution after a large enough n. 1.3 Derivation of WKB We assume that the solution to equation 1 is given by (x) = eiu(x) (9) with u(x) an unknown complex function. Substituting it in 1, we get the following equation of u(x): iu00(x) u0(x)2 + k(x)2 = 0 (10) Now we sovle this ODE with the succesive ...
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