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Problems concerning oscillators that are not harmonic (i.e. for forces that are not linearly proportional to position).
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Approximating the energy levels of the anharmonic oscillator using WKB [closed]
I got stuck trying to solve this problem:
Given the potential $$V(x) = \frac{m\omega^2x^2}{2}-\beta x^4,\ \beta>0$$ I need to evaluate the deviation of the energy levels from the harmonic oscillator u …