【出处】 QuantumMechanics 【题目】 a particle is in the ground state of a box with sides x = + or - a. Very suddenly the sides of the box are moved to x = + or - b (b>a). What is the probability the particle will be found in the ground state for the new potential? What is the probability that the particle will be found in the first excited state? In the latter case, the simple answer has a simple explanation. What is it? 【瓶颈】 看到这题有点不太确定题目意思 我自己写出来会有点疑问C2的写法哪种是正确的，虽然都是0 http://imgur.com/kMn0AOg 但是我想厘清ㄧ下自己的观念 http://imgur.com/VwNrkoR 我後来有稍微找一下解答 但我觉得感觉是ψ(x) is odd才对所以应该是我写的(1)写法吧? 所以想请大大帮我厘清ㄧ下 --

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