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Article Dans Une Revue Physical Review D Année : 2020

Resolution of the Co-Location Problem in Satellite Quantum Tests of the Universality of Free Fall

Sina Loriani
  • Fonction : Auteur
Christian Schubert
  • Fonction : Auteur
Dennis Schlippert
  • Fonction : Auteur
Wolfgang Ertmer
  • Fonction : Auteur
Ernst Maria Rasel
  • Fonction : Auteur
Naceur Gaaloul
  • Fonction : Auteur
Peter Wolf

Résumé

A major challenge common to all Galilean drop tests of the Universality of Free Fall (UFF) is the required control over the initial kinematics of the two test masses upon release due to coupling to gravity gradients and rotations. In this work, we present a two-fold mitigation strategy to significantly alleviate the source preparation requirements in space-borne quantum tests of the UFF, using a compensation mechanism together with signal demodulation. To this end, we propose a scheme to reduce the gravity-gradient-induced uncertainties in an atom-interferometric experiment in a dedicated satellite mission and assess the experimental feasibility. We find that with moderate parameters, the requirements on the initial kinematics of the two masses can be relaxed by five orders of magnitude. This does not only imply a significantly reduced mission time but also allows to reduce the differential acceleration uncertainty caused by co-location imperfections below the $10^{-18}$ level.
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Dates et versions

hal-02900245 , version 1 (14-01-2024)

Identifiants

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Sina Loriani, Christian Schubert, Dennis Schlippert, Wolfgang Ertmer, Franck Pereira dos Santos, et al.. Resolution of the Co-Location Problem in Satellite Quantum Tests of the Universality of Free Fall. Physical Review D, 2020, 102, pp.124043. ⟨10.1103/PhysRevD.102.124043⟩. ⟨hal-02900245⟩
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