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Illustration Infinite square potential well (1d) - Wave functions

Wave functions - Infinite square potential well (1d)
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A one-dimensional potential well of a certain length with infinitely high potential walls. This means: A particle inside the potential well would need infinite energy to get out.

The particle (e.g. an electron) inside the well can occupy certain states, described by the wave functions \(\psi_1\), \(\psi_2\), \(\psi_3\) and so on.