Raman interferometry with free-falling and trapped atoms

In the CAPRICE experiment, the authors employ atom interferometry to compare the free fall of potassium and rubidium atoms with a differential atomic gravimeter. This leads to a precision test of the universality of free fall with two quantum objects. The paper presents the first results with the single species rubidium gravimeter and show the progress of the system update to trap and manipulate potassium atoms. The progress in working with an optical dipole trap at a wavelength of 1960 nm was also presented.In the CAPRICE experiment, the authors employ atom interferometry to compare the free fall of potassium and rubidium atoms with a differential atomic gravimeter. This leads to a precision test of the universality of free fall with two quantum objects. The paper presents the first results with the single species rubidium gravimeter and show the progress of the system update to trap and manipulate potassium atoms. The progress in working with an optical dipole trap at a wavelength of 1960 nm was also presented.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)May 1, 20110 citations

Raman-induced resonance imaging of trapped atoms

T. A. Savard

Oct 1, 19982 citations

Revival of Raman coherence of trapped atoms

Gadi Afek, Jonathan Coslovsky, Alexander Mil +1 more

We perform Raman spectroscopy of optically trapped noninteracting $^{87}\mathrm{Rb}$ atoms, and observe revivals of the atomic coherence at integer multiples of the trap period. The effect of coherence control methods such as echo and dynamical decoupling is investigated experimentally, analytically, and numerically, along with the effect of the anharmonicity of the trapping potential. The latter is shown to be responsible for incompleteness of the revivals. Coherent Raman control of trapped atoms can be useful in the context of free-oscillation atom interferometry and spatial multimode quantum memory.We perform Raman spectroscopy of optically trapped noninteracting $^{87}\mathrm{Rb}$ atoms, and observe revivals of the atomic coherence at integer multiples of the trap period. The effect of coherence control methods such as echo and dynamical decoupling is investigated experimentally, analytically, and numerically, along with the effect of the anharmonicity of the trapping potential. The latter is shown to be responsible for incompleteness of the revivals. Coherent Raman control of trapped atoms can be useful in the context of free-oscillation atom interferometry and spatial multimode quantum memory.

arXiv:1708.02129Physical Review AOct 13, 20175 citations

Theory of an atomic interferometer in the Raman-Nath regime

Ewan M. Wright, Pierre Meystre

Optics CommunicationsMar 1, 199020 citations

Free-Falling Interferometry

Markus Arndt

Atom interferometry in free fall demonstrates fundamental quantum physics and a new level of technology readiness for future experiments in space.

PhysicsFeb 25, 20131 citation

We perform Raman spectroscopy of optically trapped noninteracting

^{87}\mathrm{Rb}

atoms, and observe revivals of the atomic coherence at integer multiples of the trap period. The effect of coherence control methods such as echo and dynamical decoupling is investigated experimentally, analytically, and numerically, along with the effect of the anharmonicity of the trapping potential. The latter is shown to be responsible for incompleteness of the revivals. Coherent Raman control of trapped atoms can be useful in the context of free-oscillation atom interferometry and spatial multimode quantum memory.