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A new photon recoil experiment: towards a determination of the fine structure constant
We report on progress towards a measurement of the fine structure constant α to an accuracy of 5×10 -10 or better by measuring the ratio h/m Cs of the...
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Ramsey interferometry with guided ultracold atoms
We examine the passage of ultracold two-level atoms in a waveguide through two separated laser fields for the nonresonant case. We show that...
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Continuous beams of cold atoms for space applications
The precision of atomic state measurements should ideally be limited by irreducible fluctuations associated with the number of atoms available, e.g....
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High-order inertial phase shifts for time-domain atom interferometers
High-order inertial phase shifts are calculated for time-domain atom interferometers. We obtain closed-form analytic expressions for these shifts in...
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A Double Well Interferometer on an Atom Chip
Radio-Frequency coupling between magnetically trapped atomic states allows to create versatile adiabatic dressed state potentials for neutral atom...
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Vibration-induced phase noise in Mach–Zehnder atom interferometers
The high inertial sensitivity of atom interferometers has been used to build accelerometers and gyrometers, but this property makes these...
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Development of an atom-interferometer gravity gradiometer for gravity measurement from space
Recent progress in cold atom interferometry has lead to a new method of sensitive inertial sensing. Significant performance enhancement of cold atom...
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Compact laser system for atom interferometry
We describe an optical bench in which we lock the relative frequencies or phases of a set of three lasers in order to use them in a cold atom...
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I.C.E.: a transportable atomic inertial sensor for test in microgravity
We present the construction of an atom interferometer for inertial sensing in microgravity, as part of the I.C.E. (Interférométrie Cohérente pour...
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Improved uncertainty budget for optical frequency measurements with microkelvin neutral atoms: Results for a high-stability 40Ca optical frequency standard
Using a Ca optical frequency standard at 657 nm, we demonstrate a method that reduces uncertainties in absolute frequency measurements of optical...
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Cold beams of biomolecules for quantum optics
We study laser desorption into an adiabatically expanding atom beam as a promising technique to volatilize an ensemble of cold biomolecules. Samples...
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Phase (or gauge) invariance and new field-free Aharonov-Bohm effects
The criteria for phase invariance of quantum effects of the Aharonov-Bohm (AB) type are revised. Gauge invariance, duality and other properties of...
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Atom interferometry measurement of the electric polarizability of lithium
Using an atom interferometer, we have measured the static electric polarizability of 7 Li α=(24.33 ±0.16)×10 -30 m 3 = 164.2±1.1 atomic units with a...
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New experimental results on the interference of the states of the hydrogen atom due to long-range interaction with the metal surface
The interference of the 2 P state of the hydrogen atom due to unknown long-range interaction with the metal surface (Sokolov effect) has been studied...
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Realizing a stable magnetic double-well potential on an atom chip
We discuss design considerations and the realization of a magnetic double-well potential on an atom chip using current-carrying wires. Stability...
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Resonant Electromechanical Vibrations of Piezoelectric Plates
The scientific results on the resonant electromechanical vibrations of piezoceramic plates in the form of disks, rings, and polygons obtained over...
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Coherence length of an elongated condensate
We measure the spatial correlation function of Bose-Einstein condensates in the cross-over region between phase-coherent and strongly...
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Spectral and energy characteristics of dioxybenzenes
In the approximation for the valence force field with quantum-chemical estimation of the intensities of the absorption bands of IR spectra,...