thanks!
but i feel not easily.
Informations on Google is so much..
what is a essential? identical particle? or peturbation theory?
Do you help me about essential of this phenomenon? thanks !
hi !
In a crystal net.When i put 2 or many atom nearly.It's electron's energy will become energy band.(view attached image)
why?
what is a essential of this phenonmenon?
thanks!