• DocumentCode
    667711
  • Title

    Precision measurement of the gravitational constant with atom interferometry

  • Author

    Tino, G.M. ; Rosi, Gabriele ; Sorrentino, Fabio ; Cacciapuoti, Luigi ; Prevedelli, M.

  • Author_Institution
    Dipt. di Fis. e Astron. & LENS, Univ. di Firenze, Sesto Fiorentino, Italy
  • fYear
    2013
  • fDate
    21-25 July 2013
  • Firstpage
    593
  • Lastpage
    598
  • Abstract
    We report on the current performance of our atom interferometry gravity gradiometer. After careful elimination of the main sources of fluctuations and biases in the atom interferometer, we achieve a sensitivity of 3×10-9 g per second to differential gravity; by modulating the position of a set of source masses, we achieve a relative statistical uncertainty of 1.1 × 10-4 to the gravitational constant G.
  • Keywords
    atom optics; gravimeters; gravitational constant; particle interferometry; atom interferometry gravity gradiometer; differential gravity; gravitational constant; precision measurement; relative statistical uncertainty; sensitivity; Atomic beams; Atomic measurements; Gravity; Laser beams; Measurement by laser beam; Position measurement; Time measurement;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013 Joint
  • Conference_Location
    Prague
  • Type

    conf

  • DOI
    10.1109/EFTF-IFC.2013.6702069
  • Filename
    6702069
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=667711