Functional-renormalization-group approach to strongly coupled Bose-Fermi mixtures in two dimensions

  title={Functional-renormalization-group approach to strongly coupled Bose-Fermi mixtures in two dimensions},
  author={Jonas von Milczewski and F{\'e}lix Rose and Richard Schmidt},
  journal={Physical Review A},
We study theoretically the phase diagram of strongly coupled two-dimensional Bose-Fermi mixtures interacting with attractive short-range potentials as a function of the particle densities. We focus on the limit where the size of the bound state between a boson and a fermion is small compared to the average interboson separation and develop a functional-renormalization-group approach that accounts for the bound-state physics arising from the extended Fröhlich Hamiltonian. By including three-body… 

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  • S. Sachdev
  • Physics
    Reports on progress in physics. Physical Society
  • 2019
This review describes how topological order associated with the presence of emergent gauge fields can reconstruct Fermi surfaces of metals, even in the absence of translational symmetry breaking. We

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