Polarized solutions and Fermi surfaces in holographic Bose-Fermi systems

  title={Polarized solutions and Fermi surfaces in holographic Bose-Fermi systems},
  author={F. Nitti and Giuseppe Policastro and Thomas Vanel},
  journal={Journal of High Energy Physics},
A bstractWe use holography to study the ground state of a system with interacting bosonic and fermionic degrees of freedom at finite density. The gravitational model consists of Einstein-Maxwell gravity coupled to a perfect fluid of charged fermions and to a charged scalar field which interact through a current-current interaction. When the scalar field is non-trivial, in addition to compact electron stars, the screening of the fermion electric charge by the scalar condensate allows the… 

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