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Unexpected optimal measurement protocols in Bell's inequality violation experiments

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  • معلومة اضافية
    • Contributors:
      Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO); Laboratoire national des champs magnétiques intenses - Toulouse (LNCMI-T); Institut National des Sciences Appliquées - Toulouse (INSA Toulouse); Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3); Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA); Laboratoire Collisions Agrégats Réactivité (LCAR); Université Toulouse III - Paul Sabatier (UT3); Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Fédération de recherche « Matière et interactions » (FeRMI); Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse); Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS); Femto (LCAR) (FEM-LCAR); Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3)
    • بيانات النشر:
      HAL CCSD
      American Association of Physics Teachers
    • الموضوع:
      2023
    • Collection:
      Université Grenoble Alpes: HAL
    • نبذة مختصرة :
      International audience ; Bell's inequality violation experiments are becoming increasingly popular in the practical teaching of undergraduate and master's degree students. Bell's parameter S is obtained from 16 polarization correlation measurements performed on entangled photons pairs. We first report here a detailed analysis of the uncertainty u(S) of Bell's parameter taking into account coincidence count statistics and errors in polarizers' orientation. We show using both computational modeling and experimental measurement that the actual sequence of the polarizer settings has an unexpected and strong influence on the error budget. This result may also be relevant to measurements in other settings in which errors in parameters may have non-random effects in the measurement.
    • Relation:
      hal-03943241; https://hal.science/hal-03943241; https://hal.science/hal-03943241/document; https://hal.science/hal-03943241/file/Negre_29386.pdf; OATAO: 29386
    • الرقم المعرف:
      10.1119/5.0102516
    • الدخول الالكتروني :
      https://doi.org/10.1119/5.0102516
      https://hal.science/hal-03943241
      https://hal.science/hal-03943241/document
      https://hal.science/hal-03943241/file/Negre_29386.pdf
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.3782CBC9