% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@INPROCEEDINGS{AlanisRodriguez:1009456,
      author       = {Alanis Rodriguez, Luis Adrian and Schell, A. W. and
                      Bruschi, David Edward},
      title        = {{I}ntroduction to gravitational redshift of quantum photons
                      propagating in curved spacetime},
      journal      = {Journal of physics / Conference Series},
      volume       = {2531},
      number       = {1},
      issn         = {1742-6588},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2023-02798},
      pages        = {012016 -},
      year         = {2023},
      abstract     = {Gravitational redshift is discussed in the context of
                      quantum photons propagating in curved spacetime. A brief
                      introduction to modelling realistic photons is first
                      presented and the effect of gravity on the spectrum computed
                      for photons largely confined along the direction of
                      propagation. It is then shown that redshift-induced
                      transformations on photon operators with sharp momenta are
                      not unitary, while a unitary transformation can be
                      constructed for realistic photons with finite bandwidth. The
                      unitary transformation obtained is then characterized as a
                      multimode mixing operation, which is a generalized rotation
                      of the Hilbert-space basis. Finally, applications of these
                      results are discussed with focus on performance of quantum
                      communication protocols, exploitation of the effects for
                      quantum metrology and sensing, as well as potential for
                      tests of fundamental science.},
      month         = {Sep},
      date          = {2022-09-14},
      organization  = {Avenues of Quantum Field Theory in
                       Curved Spacetime (AQFTCS 2022), Genova
                       (Italy), 14 Sep 2022 - 16 Sep 2022},
      cin          = {PGI-12},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-12-20200716},
      pnm          = {5221 - Advanced Solid-State Qubits and Qubit Systems
                      (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5221},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
      UT           = {WOS:001018634100016},
      doi          = {10.1088/1742-6596/2531/1/012016},
      url          = {https://juser.fz-juelich.de/record/1009456},
}