Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-09-03
Nature 467:E1,2010
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
2 pages, Brief Communication appeared in Nature (2 September 2010)
Scientific paper
10.1038/nature09340
In a recent paper, H. Mueller, A. Peters and S. Chu [A precision measurement of the gravitational redshift by the interference of matter waves, Nature 463, 926-929 (2010)] argued that atom interferometry experiments published a decade ago did in fact measure the gravitational redshift on the quantum clock operating at the very high Compton frequency associated with the rest mass of the Caesium atom. In the present Communication we show that this interpretation is incorrect.
Blanchet Luc
Bordé Christian J.
Cohen-Tannoudji Claude
Reynaud Serge
Salomon Christophe
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