Atom interferometry gravity-gradiometer for the determination of the Newtonian gravitational constant G

  • A. Bertoldi
  • G. Lamporesi
  • L. Cacciapuoti
  • M. de Angelis
  • M. Fattori
  • T. Petelski
  • A. Peters
  • M. Prevedelli
  • J. Stuhler
  • G. M. Tino
Highlight Paper

Abstract.

We developed a gravity-gradiometer based on atom interferometry for the determination of the Newtonian gravitational constant G. The apparatus, combining a Rb fountain, Raman interferometry and a juggling scheme for fast launch of two atomic clouds, was specifically designed to reduce possible systematic effects. We present instrument performances and preliminary results for the measurement of G with a relative uncertainty of 1%. A discussion of projected accuracy for G measurement using this new scheme shows that the results of the experiment will be significant to discriminate between previous inconsistent values.

PACS.

03.75.Dg Atom and neutron interferometry 04.80.-y Experimental studies of gravity 06.20.Jr Determination of fundamental constants 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Authors and Affiliations

  • A. Bertoldi
    • 1
  • G. Lamporesi
    • 1
  • L. Cacciapuoti
    • 1
  • M. de Angelis
    • 1
  • M. Fattori
    • 1
  • T. Petelski
    • 1
  • A. Peters
    • 1
  • M. Prevedelli
    • 1
  • J. Stuhler
    • 1
  • G. M. Tino
    • 1
  1. 1.Dipartimento di Fisica and LENS, Università di FirenzeSesto Fiorentino (Firenze)Italy

Personalised recommendations