V.F. Fateev, Y.F. Smirnov, S.S. Donchenko, F.R. Smirnov, E.A. Rybakov FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russiafateev@vniiftri.ru Al’manac of Modern Metrology № 1 (29) 2022, pages 115–126 Abstract. For the first time, the doubled effect of the gravitational frequency shift in the gravitational field of the Earth was measured using stationary and transportable hydrogen quantum clocks … Continue reading Experimental measurement of the doubled gravitational frequency shift in a quantum level on hydrogen clocks