Recoil-Sensitive Lithium Interferometer without a Subrecoil Sample.

Phys Rev Lett

Department of Physics, 366 LeConte Hall, Berkeley, California 94720, USA.

Published: June 2017

We report simultaneous conjugate Ramsey-Bordé interferometers with a sample of low-mass (lithium-7) atoms at 50 times the recoil temperature. We optically pump the atoms to a magnetically insensitive state using the 2S_{1/2}-2P_{1/2} line. Fast stimulated Raman beam splitters address a broad velocity class and unavoidably drive two conjugate interferometers that overlap spatially. We show that detecting the summed interference signals of both interferometers, using state labeling, allows recoil measurements and suppression of phase noise from vibrations. The use of "warm" atoms allows for simple, efficient, and high-flux atom sources and broadens the applicability of recoil-sensitive interferometry to particles that remain difficult to trap and cool.

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http://dx.doi.org/10.1103/PhysRevLett.118.233201DOI Listing

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Similar Publications

Recoil-Sensitive Lithium Interferometer without a Subrecoil Sample.

Phys Rev Lett

June 2017

Department of Physics, 366 LeConte Hall, Berkeley, California 94720, USA.

We report simultaneous conjugate Ramsey-Bordé interferometers with a sample of low-mass (lithium-7) atoms at 50 times the recoil temperature. We optically pump the atoms to a magnetically insensitive state using the 2S_{1/2}-2P_{1/2} line. Fast stimulated Raman beam splitters address a broad velocity class and unavoidably drive two conjugate interferometers that overlap spatially.

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