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Open Quantum Systems Decoherence Photonic Quantum Computing

Enhancing fiber atom interferometer by in-fiber laser cooling

arXiv
Authors: Yu Wang, Shijie Chai, Thomas Billotte, Zilong Chen, Mingjie Xin, Wui Seng Leong, Foued Amrani, Benoit Debord, Fetah Benabid, Shau-Yu Lan

Year

2021

Paper ID

40488

Status

Preprint

Abstract Read

~2 min

Abstract Words

108

Citations

N/A

Abstract

We demonstrate an inertia sensitive atom interferometer optically guided inside a 22-cm-long negative curvature hollow-core photonic crystal fiber with an interferometer time of 20 ms. The result prolongs the previous fiber guided atom interferometer time by three orders of magnitude. The improvement arises from the realization of in-fiber Λ-enhanced gray molasses and delta-kick cooling to cool atoms from 32 μK to below 1 μK in 4 ms. The in-fiber cooling overcomes the inevitable heating during the atom loading process and allows a shallow guiding optical potential to minimize decoherence. Our results permit bringing atoms close to source fields for sensing and could lead to compact inertial quantum sensors with a sub-millimeter resolution.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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  • We demonstrate an inertia sensitive atom interferometer optically guided inside a 22-cm-long negative curvature hollow-core photonic crystal fiber with an interferometer time...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2112.10088 [2] arXiv https://arxiv.org/abs/2112.10088 [3] Publisher https://arxiv.org/abs/2112.10088

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