1. Students are told to consider a 3-chain potential well system with separation distance $a$. They can also be reminded that the envelope function for an electron in a potential landscape with N-wells can be described with

$$\psi(x) \; = \sum_{n=1}^{N}A \sin{(kna)} \; \phi (x-na)$$

  1. SWBQ: Sketch the first three eigenstates for this system in real space.

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