Dark-state sideband cooling in an atomic ensemble
We utilize the dark state in a ∧-type three-level system to cool an ensemble of ⁸⁵Rb atoms in an optical lattice [Morigi et al., Phys. Rev. Lett. 85, 4458 (2000)]. The common suppression of the carrier transition of atoms with different vibrational frequencies allows them to reach a subrecoil temper...
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sg-ntu-dr.10356-1468792023-02-28T19:27:14Z Dark-state sideband cooling in an atomic ensemble Huang, Chang Chai, Shijie Lan, Shau-Yu School of Physical and Mathematical Sciences Science::Physics Coherent Population Trapping Optical Lattices We utilize the dark state in a ∧-type three-level system to cool an ensemble of ⁸⁵Rb atoms in an optical lattice [Morigi et al., Phys. Rev. Lett. 85, 4458 (2000)]. The common suppression of the carrier transition of atoms with different vibrational frequencies allows them to reach a subrecoil temperature of 100 nK after being released from the optical lattice. A nearly zero vibrational quantum number is determined from the time-of-flight measurements and adiabatic expansion process. The features of sideband cooling are examined in various parameter spaces. Our results show that dark-state sideband cooling is a simple and compelling method for preparing a large ensemble of atoms into their vibrational ground state of a harmonic potential and can be generalized to different species of atoms and molecules for studying ultracold physics that demands recoil temperature and below. Ministry of Education (MOE) National Research Foundation (NRF) Published version This work is supported by the Singapore National Research Foundation under Grant No. NRFF2013-12 and QEP-P4, and the Singapore Ministry of Education under Grant No. MOE2017-T2-2-066. 2021-03-12T06:19:02Z 2021-03-12T06:19:02Z 2021 Journal Article Huang, C., Chai, S. & Lan, S. (2021). Dark-state sideband cooling in an atomic ensemble. Physical Review A, 103(1). https://dx.doi.org/10.1103/PhysRevA.103.013305 2469-9926 https://hdl.handle.net/10356/146879 10.1103/PhysRevA.103.013305 2-s2.0-85099119743 1 103 en NRFF2013-12 MOE2017-T2-2-066 Physical Review A © 2021 American Physical Society. All rights reserved. This paper was published in Physical Review A and is made available with permission of American Physical Society. application/pdf |
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Science::Physics Coherent Population Trapping Optical Lattices Huang, Chang Chai, Shijie Lan, Shau-Yu Dark-state sideband cooling in an atomic ensemble |
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We utilize the dark state in a ∧-type three-level system to cool an ensemble of ⁸⁵Rb atoms in an optical lattice [Morigi et al., Phys. Rev. Lett. 85, 4458 (2000)]. The common suppression of the carrier transition of atoms with different vibrational frequencies allows them to reach a subrecoil temperature of 100 nK after being released from the optical lattice. A nearly zero vibrational quantum number is determined from the time-of-flight measurements and adiabatic expansion process. The features of sideband cooling are examined in various parameter spaces. Our results show that dark-state sideband cooling is a simple and compelling method for preparing a large ensemble of atoms into their vibrational ground state of a harmonic potential and can be generalized to different species of atoms and molecules for studying ultracold physics that demands recoil temperature and below. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Huang, Chang Chai, Shijie Lan, Shau-Yu |
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Article |
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Huang, Chang Chai, Shijie Lan, Shau-Yu |
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Huang, Chang |
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Dark-state sideband cooling in an atomic ensemble |
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Dark-state sideband cooling in an atomic ensemble |
title_full |
Dark-state sideband cooling in an atomic ensemble |
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Dark-state sideband cooling in an atomic ensemble |
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Dark-state sideband cooling in an atomic ensemble |
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dark-state sideband cooling in an atomic ensemble |
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2021 |
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https://hdl.handle.net/10356/146879 |
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