Posted by Steve Simon on May 30, 2013, 8:53 pm, in reply to "Re: Debye model: average phonon energy at low T"
The energy of a phonon is hbar omega. The energy in a given normal mode omega is
hbar omega (nbose + 1/2)
If there are zero of these phonons present then you still have the zero point energy hbar omega. But this is not part of the energy of any of the phonons.
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