Measuring the Newtonian constant of gravitation G with an atomic interferometer | Zendy

M. Prevedelli | Zendy; L. Cacciapuoti | Zendy; G. Rosi | Zendy; F. Sorrentino | Zendy; G. M. Tino | Zendy

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Measuring the Newtonian constant of gravitation G with an atomic interferometer

Author(s) -

M. Prevedelli,

L. Cacciapuoti,

G. Rosi,

F. Sorrentino,

G. M. Tino

Publication year - 2014

Publication title -

philosophical transactions of the royal society a mathematical physical and engineering sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.074

H-Index - 169

eISSN - 1471-2962

pISSN - 1364-503X

DOI - 10.1098/rsta.2014.0030

Subject(s) - gravitational constant , interferometry , atom interferometer , physics , newtonian fluid , constant (computer programming) , range (aeronautics) , gravitation , parenthesis , measurement uncertainty , physical constant , standard uncertainty , computational physics , classical mechanics , astronomical interferometer , optics , quantum mechanics , materials science , computer science , composite material , programming language , linguistics , philosophy

We have recently completed a measurement of the Newtonian constant of gravitation G using atomic interferometry. Our result is G=6.67191(77)(62)×10(-11) m(3) kg(-1) s(-2) where the numbers in parenthesis are the type A and type B standard uncertainties, respectively. An evaluation of the measurement uncertainty is presented and the perspectives for improvement are discussed. Our result is approaching the precision of experiments based on macroscopic sensing masses showing that the next generation of atomic gradiometers could reach a total relative uncertainty in the 10 parts per million range.

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