558 citations
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- Centre National de la Recherche ScientifiqueFR14 papers
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6 papers · 1 filter
New determination of the fine structure constant and test of the quantum electrodynamics
Rym Bouchendira, Pierre Cladé, Saïda Guellati-Khélifa +2
We report a new measurement of the ratio between the Planck constant and the mass of atom. A new value of the fine structure constant is dedu…
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…
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…
Proposal for new experimental schemes to realize the Avogadro constant
F. Biraben, M. Cadoret, P. Clad +7
We propose two experimental schemes to determine and so to realize the Avogadro constant at the level of 10 or better with a watt balance experiment and a cold atom…
Bloch oscillations of ultracold atoms: a tool for a metrological determination of
Remy Battesti, Pierre Clade, Saida Guellati-Khelifa +5
We use Bloch oscillations in a horizontal moving standing wave to transfer a large number of photon recoils to atoms with a high efficiency (99.5% per cycle). By measuring the phot…