Fröhlich polaron and bipolaron: recent developments

  title={Fr{\"o}hlich polaron and bipolaron: recent developments},
  author={Jozef T. Devreese and Sasha Alexandrov},
  journal={Reports on Progress in Physics},
It is remarkable how the Frohlich polaron, one of the simplest examples of a Quantum Field Theoretical problem, as it basically consists of a single fermion interacting with a scalar Bose field of ion displacements, has resisted full analytical or numerical solution at all coupling since ~1950, when its Hamiltonian was first written. The field has been a testing ground for analytical, semi-analytical and numerical techniques, such as path integrals, strong-coupling perturbation expansion… Expand
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  • 2020
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