I'm confused when I study potential wells. I understand that when E<V0 there are eigenstates and only certain values of energy. I can express this condition with an equation and eigenfunctions.(adsbygoogle = window.adsbygoogle || []).push({});

However, if E>V0, it's not bounded and all values of energy are possible. This, I don't understand. It is true that the sprectrum can be discrete or continous but how would you explain this with a example, say the finite potential well.

Thanks.

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# Potential well

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