F-electron spectral function near a quantum critical point
  We calculate the f-electron spectral function using a Keldysh formalism for the Falicov-Kimball model in infinite dimensions. We study the region close to the quantum critical point on both the hypercubic and Bethe lattices. 
J. K. Freericks (Georgetown), V. Turkowski (Georgetown), and V. Zlatic   (Inst. of Physics, Zagreb, Croatia)