Enhancing fiber atom interferometer by in-fiber laser cooling

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 improves the previous fiber guided atom interferometer sensitivity by three orders of magnitude. The imp...

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Main Authors: Yu Wang, Shijie Chai, Thomas Billotte, Zilong Chen, Mingjie Xin, Wui Seng Leong, Foued Amrani, Benoit Debord, Fetah Benabid, Shau-Yu Lan
Format: Article
Language:English
Published: American Physical Society 2022-06-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.L022058
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author Yu Wang
Shijie Chai
Thomas Billotte
Zilong Chen
Mingjie Xin
Wui Seng Leong
Foued Amrani
Benoit Debord
Fetah Benabid
Shau-Yu Lan
author_facet Yu Wang
Shijie Chai
Thomas Billotte
Zilong Chen
Mingjie Xin
Wui Seng Leong
Foued Amrani
Benoit Debord
Fetah Benabid
Shau-Yu Lan
author_sort Yu Wang
collection DOAJ
description 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 improves the previous fiber guided atom interferometer sensitivity 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 32μK to below 1μK 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 submillimeter resolution.
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spelling doaj.art-62c5efa5101845fe8f92cbb918c5b6ba2024-04-12T17:21:51ZengAmerican Physical SocietyPhysical Review Research2643-15642022-06-0142L02205810.1103/PhysRevResearch.4.L022058Enhancing fiber atom interferometer by in-fiber laser coolingYu WangShijie ChaiThomas BillotteZilong ChenMingjie XinWui Seng LeongFoued AmraniBenoit DebordFetah BenabidShau-Yu LanWe 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 improves the previous fiber guided atom interferometer sensitivity 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 32μK to below 1μK 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 submillimeter resolution.http://doi.org/10.1103/PhysRevResearch.4.L022058
spellingShingle Yu Wang
Shijie Chai
Thomas Billotte
Zilong Chen
Mingjie Xin
Wui Seng Leong
Foued Amrani
Benoit Debord
Fetah Benabid
Shau-Yu Lan
Enhancing fiber atom interferometer by in-fiber laser cooling
Physical Review Research
title Enhancing fiber atom interferometer by in-fiber laser cooling
title_full Enhancing fiber atom interferometer by in-fiber laser cooling
title_fullStr Enhancing fiber atom interferometer by in-fiber laser cooling
title_full_unstemmed Enhancing fiber atom interferometer by in-fiber laser cooling
title_short Enhancing fiber atom interferometer by in-fiber laser cooling
title_sort enhancing fiber atom interferometer by in fiber laser cooling
url http://doi.org/10.1103/PhysRevResearch.4.L022058
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