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Bulletin of the American Physical Society

Spatial correlation of quantum noise in a laser beam interacting with atomic ensembles

M. Zhang, Irina V. Novikova, Eugeniy E. Mikhailov

Published Jun 3, 2014• 0 citations
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Laser cooled atomic ensembles provide a promising platform for realizing quantum repeaters, due to their capacity to manipulate flying and stored light quanta efficiently. We generate single-photon Airy bullets in a laser cooled atomic ensemble by completely shaping a single photon in the spatial and temporal dimensions. On the other hand, in our latest work, we have found that the synthetic magnetic fields generated by a far detuned AC-Stark beam applied to the atomic ensemble can compensate for the temporal fluctuations and spatial inhomogeneities typically originating from stray magnetic fields.
A system for gravity measurement includes one or more atom sources, two or more laser beams, and a polarizing beamsplitter and a retro-reflection prism assembly. The one or more atom sources is to provide three ensembles of atoms. The two or more laser beams is to cool or interrogate the three ensembles of atoms. The polarizing beamsplitter and the retro-reflection prism assembly are in a racetrack configuration. The racetrack configuration routes the two or more laser beams in opposing directions around a loop topology, intersecting the three ensembles of atoms with appropriate polarizations chosen for cooling or interferometer interrogation. The three ensembles of atoms are positioned coaxially when interrogated.