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Title: Enhancing fiber atom interferometer by in-fiber laser cooling
Authors: Wang, Yu
Chai, Shijie
Billotte, Thomas
Chen, Zilong
Xin, Mingjie
Leong, Wui Seng
Amrani, Foued
Debord, Benoit
Benabid, Fetah
Lan, Shau-Yu
Keywords: Science::Physics
Issue Date: 2022
Source: Wang, Y., Chai, S., Billotte, T., Chen, Z., Xin, M., Leong, W. S., Amrani, F., Debord, B., Benabid, F. & Lan, S. (2022). Enhancing fiber atom interferometer by in-fiber laser cooling. Physical Review Research, 4(2), L022058-1-L022058-5.
Project: QEP-P4
MOE2018-T2- 1-082
Journal: Physical Review Research
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 {\Lambda}-enhanced gray molasses and delta-kick cooling to cool atoms from 32 {\mu}K to below 1 {\mu}K 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.
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.4.L022058
Schools: School of Physical and Mathematical Sciences 
Rights: © 2022 The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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