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9 papers · 2 filters
Relativistic corrections of mα^6(m/M) order to the hyperfine structure of the H_2^+ molecular ion
V. I. Korobov, L. Hilico, J. -Ph. Karr
The mα^6(m/M) order corrections to the hyperfine splitting in the H_2^+ ion are calculated. That allows to reduce uncertainty in the frequency intervals between hyperfine sublevels…
Combination of Bloch oscillations with a Ramsey-Bordé interferometer : new determination of the fine structure constant
Malo Cadoret, Estefania De Mirandes, Pierre Cladé +5
We report a new experimental scheme which combines atom interferometry with Bloch oscillations to provide a new measurement of the ratio . By using Bloch oscilla…
Line shape of the muH(3p - 1s) hyperfine transitions
D. S. Covita, D. F. Anagnostopoulos, H. Gorke +13
The (3p - 1s) X-ray transition to the muonic hydrogen ground state was measured with a high resolution crystal spectrometer. A Doppler effect broadening of the X-ray line was estab…
Atom interferometry based on light pulses : application to the high precision measurement of the ratio h/m and the determination of the fine structure constant
Malo Cadoret, Estefania De Mirandes, Pierre Cladé +4
In this paper we present a short overview of atom interferometry based on light pulses. We discuss different implementations and their applications for high precision measurements.…
Precise determination of h/m_Rb using Bloch oscillations and atomic interferometry: a mean to deduce the fine structure constant
Malo Cadoret, Estefania De Mirandes, Pierre Cladé +5
We use Bloch oscillations to transfer coherently many photon momenta to atoms. Then we can measure accurately the ratio h/m_Rb and deduce the fine structure constant alpha. The vel…
Spectroscopy of atomic hydrogen. How is the Rydberg constant determined?
François Biraben
This article presents a review of the most recent theoretical and experimental results in hydrogen. We particularly emphasize the methods used to deduce the Rydberg constant $R_\in…