About the quasi-harmonic free energy

Hyla Brook · Oct 27, 2010

Hi guys, I'm recently working on the quasi-harmonic theory. I feel confused when i find the expression of vibrational free energy is deduced using the partion function of Boltzmann distribution, i.e., Z=Sigma{exp(-(1/2+n)*hw/kT)}. Since the phonon is boson, i tried to get the same free energy expression using the Bose-Einstein partion function but failed. I don't know why.

Hyla Brook · Nov 2, 2010

Will anybody help me?

About the quasi-harmonic free energy

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About the quasi-harmonic free energy

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