Two Hartree-Fock models for the vacuum polarization
  We review recent results about the derivation and the analysis of two Hartree-Fock-type models for the polarization of vacuum. We pay particular attention to the variational construction of a self-consistent polarized vacuum, and to the physical agreement between our non-perturbative construction and the perturbative description provided by Quantum Electrodynamics. 
Philippe Gravejat (CMLS-EcolePolytechnique), Christian Hainzl, Mathieu   Lewin (AGM), Eric S\'er\'e (CEREMADE)
math-ph math.MP