- #1
t_n_p
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Homework Statement
http://img125.imageshack.us/img125/2923/85098487ch9.jpg
The Attempt at a Solution
Because there is no wavefunction specified, is it sufficient to show A+A- = (ε+1) and hence perform the expansion [(-d/dx)+tanh(x)][(d/dx)+tanh(x)]?
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