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1,WKB,Reading Materials: 曾谨言，量子力学（II）第三版，2.4 苏铷铿，量子力学,第三讲,2,The WKB approximation,3,Classical region,4,Example for Classical region,5,Example,potential for harmonic oscillator，how about the energy for this system?,The coordinate of Turning points:,6,Nonclassical (tunneling) region,7,Gamows theory of alpha decay,An alpha particle contain Two protons & neutrons,8,9,The connection formulas,10,Patching wave function,11,12,13,Connection formulas,14,Example,potential for harmonic osicllator，how about the energy for this system?,The coordinate of Turning points:,