@article{BeniniCapoferriDappiaggi2017,
  author    = {Marco Benini and Matteo Capoferri and Claudio Dappiaggi},
  title     = {Hadamard States for Quantum Abelian Duality},
  journal   = {Annales de l'Institut Henri Poincar{\´e}},
  volume    = {18},
  pages     = {3325 -- 3370},
  doi       = {10.1007/s00023-017-0593-y},
  year      = {2017},
}