Atom interferometry gravity-gradiometer for the determination of the Newtonian gravitational constant G
Anno: 2006
Autori: Bertoldi A., Lamporesi G., Cacciapuoti L., de Angelis M., Fattori M., Petelski T., Peters A., Prevedelli M., Stuhler J., Tino G.M.
Affiliazione autori: Dipartimento di Fisica and LENS, Università di Firenze, INFN, Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino (Firenze), Italy
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.
Giornale/Rivista: EUROPEAN PHYSICAL JOURNAL D
Volume: 40 (2) Da Pagina: 271 A: 279
Parole chiavi: atom interferometry; gradiometer; gravitational constantDOI: 10.1140/epjd/e2006-00212-2Citazioni: 94dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui