Fermi linearization scheme for itinerant electrons with Clifford variables

  title={Fermi linearization scheme for itinerant electrons with Clifford variables},
  author={Arianna Montorsi and Alessandro Pelizzola},
  journal={Journal of Physics A},
The authors propose an alternative interpretation of the Fermi linearization approach to interacting electron systems, based on the requirement that the coefficients of the linearized operators are Clifford-like variables, whose anticommutator equals an unknown constant c. They apply the approximation to the Falicov-Kimball model (1969), explicitly solving the self-consistency equation for the unknown, which turns out to behave as an order parameter. They discuss its relation with a metal… 
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