Missing $\beta$ in equation Debye model

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1

Hi! In the Debye model lecture notes, the equation for the expectation of energy (total energy) is given, just below the equation for the dispersion relation. In the equation, however, the n_B (\hbar \omega) -term should be n_B (\beta \hbar \omega). The equation right afterwards does state the term, and so does the book on page 11.

Cheers!

2

thanks for noting! I changed it now, should be up in a few minutes