Precision measurement of the Newtonian gravitational constant using cold atoms

G. Rosi, F. Sorrentino, L. Cacciapuoti, M. Prevedelli and G. M. Tino ()
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G. Rosi: Università di Firenze - INFN Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino, Italy
F. Sorrentino: Università di Firenze - INFN Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino, Italy
L. Cacciapuoti: European Space Agency, Keplerlaan 1, PO Box 299, 2200 AG Noordwijk ZH, The Netherlands
M. Prevedelli: Università di Bologna, Via Irnerio 46, 40126, Bologna, Italy
G. M. Tino: Università di Firenze - INFN Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino, Italy

Nature, 2014, vol. 510, issue 7506, 518-521

Abstract: Determination of the gravitational constant G using laser-cooled atoms and quantum interferometry, a technique that gives new insight into the systematic errors that have proved elusive in previous experiments, yields a value that has a relative uncertainty of 150 parts per million and which differs from the current recommended value by 1.5 combined standard deviations.

Date: 2014
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DOI: 10.1038/nature13433

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