ghc
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Question 1: If we consider that each atom in a cristal solid is a harmonic oscillator with the energy eigenvalues (n+1/2) \hbar \omega and if one oscillator has for example an energy (1+1/2) \hbar \omega, does this mean that there is a phonon located on this atom?
Question 2: If this is true, can we define a wave function, \psi (x) for example, as the sum (or the integral) of plane waves that describes the amplutide of finding the phonon somewhere on the x axis?
Question 3: Does a single phonon in a solid cristal behave in the same manner as a free electron in a box for exemple?
Thank you.
Question 2: If this is true, can we define a wave function, \psi (x) for example, as the sum (or the integral) of plane waves that describes the amplutide of finding the phonon somewhere on the x axis?
Question 3: Does a single phonon in a solid cristal behave in the same manner as a free electron in a box for exemple?
Thank you.