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@ARTICLE{Ahmadiniaz:625552,
      author       = {Ahmadiniaz, Naser and Baehtz, Carsten and Benediktovitch,
                      Andrei and Boemer, Christina and Bocklage, Lars and Cowan,
                      Thomas and Edwards, James and Evans, S. and Viñas, S.
                      Franchino and Gies, Holger and Goede, Sebastian and Goers,
                      Judith and Grenzer, Joerg and Acosta, U. Hernandez and
                      Heinzl, Thomas and Hilz, Peter and Hippler, Willi and Huang,
                      Lingen and Humphries, Oliver and Karbstein, Felix and
                      Khademi, Pooyan and King, Ben and Kluge, Thomas and
                      Kohlfürst, C. and Krebs, Dietrich and Laso-García, A. and
                      Loetzsch, Robert and Macleod, Alexander and Marx-Glowna,
                      Berit and Mosman, Elena and Nakatsutsumi, Motoaki and
                      Paulus, Gerhard and Rahul, Sripati Venkata and Randolph,
                      Lisa and Roehlsberger, Ralf and Rohringer, Nina and Saevert,
                      Alexander and Sadashivaiah, Sakshath and sauerbrey, roland
                      and Schlenvoigt, Hans-Peter and Schmidt, Soeren Matthias and
                      Schramm, Ulrich and Schuetzhold, Ralf and Schwinkendorf,
                      Jan-Patrick and Seipt, Daniel and Smid, Miroslav and
                      Stoehlker, Thomas and Toncian, Toma and Valialshchikov,
                      Maksim and Wipf, Susan and Zastrau, Ulf and Zepf, Matt},
      title        = {{T}owards a vacuum birefringence experiment at the
                      {H}elmholtz {I}nternational {B}eamline for {E}xtreme
                      {F}ields ({L}etter of {I}ntent of the {BIREF}@{HIBEF}
                      {C}ollaboration)},
      reportid     = {PUBDB-2025-01129, arXiv:2405.18063},
      year         = {2025},
      note         = {High Power Laser Science and Engineering, Vol. 13, e7
                      (2025). 34 pages, 21 figures},
      abstract     = {Quantum field theory predicts a nonlinear response of the
                      vacuum to strong electromagnetic fields of macroscopic
                      extent. This fundamental tenet has remained experimentally
                      challenging and is yet to be tested in the laboratory. A
                      particularly distinct signature of the resulting optical
                      activity of the quantum vacuum is vacuum birefringence. This
                      offers an excellent opportunity for a precision test of
                      nonlinear quantum electrodynamics in an uncharted parameter
                      regime. Recently, the operation of the high-intensity
                      Relativistic Laser at the X-ray Free Electron Laser provided
                      by the Helmholtz International Beamline for Extreme Fields
                      has been inaugurated at the High Energy Density scientific
                      instrument of the European X-ray Free Electron Laser. We
                      make the case that this worldwide unique combination of an
                      X-ray free-electron laser and an ultra-intense near-infrared
                      laser together with recent advances in high-precision X-ray
                      polarimetry, refinements of prospective discovery scenarios
                      and progress in their accurate theoretical modelling have
                      set the stage for performing an actual discovery experiment
                      of quantum vacuum nonlinearity.},
      keywords     = {birefringence: vacuum (INSPIRE) / electromagnetic field:
                      high (INSPIRE) / quantum electrodynamics: nonlinear
                      (INSPIRE) / polarization: monitoring (INSPIRE) / laser:
                      infrared (INSPIRE) / free electron laser: X-ray (INSPIRE) /
                      optics (INSPIRE) / precision measurement (INSPIRE) /
                      experimental methods (INSPIRE) / light-by-light scattering
                      (autogen) / vacuum birefringence (autogen) / vacuum
                      polarization (autogen)},
      cin          = {FS-TUX / $XFEL_E1_HED$ / FS-PS},
      ddc          = {620},
      cid          = {I:(DE-H253)FS-TUX-20170422 /
                      $I:(DE-H253)XFEL_E1_HED-20210408$ /
                      I:(DE-H253)FS-PS-20131107},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631) / DFG project G:(GEPRIS)392856280 - FOR 2783:
                      Probing the Quantum Vacuum at the High-Intensity Frontier
                      (392856280) / DFG project G:(GEPRIS)416611371 - Optische
                      Nichtlinearitäten des Quantenvakuums (416611371) / DFG
                      project G:(GEPRIS)416607684 - Vakuumdoppelbrechung
                      (416607684) / DFG project G:(GEPRIS)416702141 - Raum- und
                      Zeitaufgelöste Einzelphotonen-detektion für
                      Vakuumwechselwirkungen (416702141) / DFG project
                      G:(GEPRIS)416708866 - Nichtperturbative Paarerzeugung:
                      Ultra-relativistische Strahlen, Lasercharakterisierung und
                      Paarnachweis (416708866) / DFG project G:(GEPRIS)278162697 -
                      SFB 1242: Nichtgleichgewichtsdynamik kondensierter Materie
                      in der Zeitdomäne (278162697)},
      pid          = {G:(DE-HGF)POF4-631 / G:(GEPRIS)392856280 /
                      G:(GEPRIS)416611371 / G:(GEPRIS)416607684 /
                      G:(GEPRIS)416702141 / G:(GEPRIS)416708866 /
                      G:(GEPRIS)278162697},
      experiment   = {EXP:(DE-H253)XFEL-HED-20150101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2405.18063},
      howpublished = {arXiv:2405.18063},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2405.18063;\%\%$},
      doi          = {10.3204/PUBDB-2025-01129},
      url          = {https://bib-pubdb1.desy.de/record/625552},
}