Use the WKB approximation to find the allowed energies (E n ) of an infinite square well
Question:
Use the WKB approximation to find the allowed energies (En) of an infinite square well with a “shelf,” of height V0, extending half-way across (Figure 7.3):
Express your answer in terms of V0 and E0n Ξ (nπћ)2 /2ma2 (the nth allowed energy for the infinite square well with no shelf). Assume that E01 > V0, but do not assume that En >> V0. Compare your result with what we got in Section 7.1.2, using first-order perturbation theory.
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p2 dx nh with n 123 and px 2mE Vx Eq 917 a a Px dx 2mE 2m E Vo 2 2m ...View the full answer
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Related Book For 
Introduction To Quantum Mechanics
ISBN: 9781107189638
3rd Edition
Authors: David J. Griffiths, Darrell F. Schroeter
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