Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
3rd Edition
ISBN: 9781107189638
Author: Griffiths, David J., Schroeter, Darrell F.
Publisher: Cambridge University Press
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Chapter 6.2, Problem 6.5P
To determine

Show that the equation ψ(x)=eiqxu(x) follows from ψ(xa)=eiqaψ(x), and also show that u(x) is a periodic function.

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6.2. Solve the three-dimensional harmonic oscillator for which 1 V(r) = -— mw² (x² + y²² +2²) 2 by separation of variables in Cartesian coordinates. Assume that the one-dimensional oscillator has eigenfunctions (x) with corresponding energy eigenvalues En = (n + 1/2)hw. What is the degeneracy of the first excited state of the oscillator?
Problem 7. 1. Calculate the energy of a particle subject to the potential V(x) = Vo + câ?/2 if the particle is in the third excited state. 2. Calculate the energy eigenvalues for a particle moving in the potential V(x) = câ2/2+ bx. %3!
PROBLEM 2. Consider a spherical potential well of radius R and depth Uo, so that the potential is U(r) = -Uo at r R. Calculate the minimum value of Uc for which the well can trap a particle with l = 0. This means that SE at Uo > Uc has at least one bound ground state at l = 0 and E < 0. At Ug = Uc the bound state disappears.
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