[題目] 固物dispertion relation
[領域] 固物 (題目相關領域)
[來源] 考古題 (課本習題、考古題、參考書...)
[題目] 解出dispersion relation 藉由 2nd quantized boson operator
[瓶頸] Kittel 是利用解微分方程解出W,不知如何利用b跟b+ 解出W
還有一題是 sketch the dispersion by eye (by eye 是甚麼意思?)
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