  We present a thermodynamical investigation of the alpha-gamma transition of
Ce using first principles calculation based on the combination of Density
Functional Theory with Dynamical Mean Field Theory. First, the scheme allows
for an improvement in the description of spectral functions. Secondly, we are
able to identify unambiguously a negative curvature in the internal energy
versus volume curves. Thirdly, we compute - thanks to extensive calculations -,
the electronic entropy and find thermodynamical functions variations during the
transition in good agreement with experiment but with a renormalized
temperature.
