[問題] 激子(exciton)是什麼??
最近看到這個準粒子 對他都沒啥概念
Wiki是說
An exciton is a bound state of an electron and an imaginary particle called
an electron hole in an insulator or semiconductor, and such is a
Coulomb-correlated electron-hole pair.
是不是算是 電子與洞 穩定的束縛態 嗎??
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