Quantum interference test of the equivalence principle on antihydrogen

P.-P. Crépin, C. Christen, R. Guérout, V. V. Nesvizhevsky, A.Yu. Voronin, and S. Reynaud
Phys. Rev. A 99, 042119 – Published 22 April 2019

Abstract

We propose to use quantum interferences to improve the accuracy of the measurement of the free-fall acceleration g¯ of antihydrogen in the gravitational behavior of antihydrogen at rest (GBAR) experiment. This method uses most antiatoms prepared in the experiment and it is simple in its principle, as interferences between gravitational quantum states are read out without transitions between them. We use a maximum likelihood method for estimating the value of g¯ and assess the accuracy of this estimation by a Monte Carlo simulation. We find that the accuracy is improved by approximately three orders of magnitude with respect to the classical timing technique planned for the current design of the experiment.

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  • Received 27 November 2018

DOI:https://doi.org/10.1103/PhysRevA.99.042119

©2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalGravitation, Cosmology & AstrophysicsParticles & FieldsNuclear PhysicsGeneral PhysicsAccelerators & Beams

Authors & Affiliations

P.-P. Crépin1,*, C. Christen1, R. Guérout1,†, V. V. Nesvizhevsky2, A.Yu. Voronin3,4, and S. Reynaud1,‡

  • 1Laboratoire Kastler Brossel (LKB), Sorbonne Université, CNRS, ENS-PSL Université, Collège de France, Campus Pierre et Marie Curie, 75252 Paris, France
  • 2Institut Laue-Langevin (ILL), 71 avenue des Martyrs, 38042 Grenoble, France
  • 3P. N. Lebedev Physical Institute, 53 Leninsky Prospect, 117924 Moscow, Russia
  • 4Russian Quantum Center, 100 A, Novaya Street, Skolkovo, 143025 Moscow, Russia

  • *pierre-philippe.crepin@lkb.upmc.fr
  • romain.guerout@lkb.upmc.fr
  • serge.reynaud@lkb.upmc.fr

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Issue

Vol. 99, Iss. 4 — April 2019

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