@article{13178,
  abstract     = {We consider the large polaron described by the Fröhlich Hamiltonian and study its energy-momentum relation defined as the lowest possible energy as a function of the total momentum. Using a suitable family of trial states, we derive an optimal parabolic upper bound for the energy-momentum relation in the limit of strong coupling. The upper bound consists of a momentum independent term that agrees with the predicted two-term expansion for the ground state energy of the strongly coupled polaron at rest and a term that is quadratic in the momentum with coefficient given by the inverse of twice the classical effective mass introduced by Landau and Pekar.},
  author       = {Mitrouskas, David Johannes and Mysliwy, Krzysztof and Seiringer, Robert},
  issn         = {2050-5094},
  journal      = {Forum of Mathematics},
  pages        = {1--52},
  publisher    = {Cambridge University Press},
  title        = {{Optimal parabolic upper bound for the energy-momentum relation of a strongly coupled polaron}},
  doi          = {10.1017/fms.2023.45},
  volume       = {11},
  year         = {2023},
}