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Cited by 937Quantum optics and atomic interactionsQuantum Information and CryptographyQuantum Mechanics and Applications

Shelved optical electron amplifier: Observation of quantum jumps

Nagourney, Warren, Sandberg, Jon, Dehmelt, Hans·1986·Physical Review Letters
DOI 10.1103/physrevlett.56.2797
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Abstract

We demonstrate here the direct observation of quantum jumps between the ${6}^{2}$${\mathrm{S}}_{1/2}$ state and the ${5}^{2}$${\mathrm{D}}_{5/2}$ state of an individual laser-cooled ${\mathrm{Ba}}^{+}$ ions contained in a radio-frequency trap. The state detection and cooling are performed by two lasers which cause ${6}^{2}$${\mathrm{S}}_{1/2}$${\mathrm{\ensuremath{-}}6}^{2}$${\mathrm{P}}_{1/2}$${\mathrm{\ensuremath{-}}5}^{2}$ ${\mathrm{D}}_{3/2}$ transitions. Incoherent excitation to the ${5}^{2}$${\mathrm{D}}_{5/2}$ state (via the ${6}^{2}$${\mathrm{P}}_{3/2}$ level) causes the fluorescence from the ${6}^{2}$${\mathrm{P}}_{1/2}$ state to be suppressed for >30-sec lifetime of that state, after which the fluorescence reappears. The resulting ``telegraph signal'' provides a direct monitor of the atomic state.

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  • Both atomic systems Yb-1 and Yb-2 trap ultracold ytterbium in a one-dimensional optical lattice operating at the 'magic' wavelength, where Stark shifts from the lattice confinement are matched for both atomic states used for the frequency standard (1S0 and 3P0).

    “Both atomic systems Yb-1 and Yb-2 trap ultracold ytterbium in a one-dimensional optical lattice operating at the 'magic' wavelength, where Stark shifts from the lattice confinement are matched for both atomic states used for the frequency standard ( 1 S0 and 3 P0) 31,32 .”

    From Ultrastable optical clock with two cold-atom ensembles (2017) · cites this paper as [32]

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Authors
Nagourney, W., Sandberg, J., & Dehmelt, H.
Affiliations
University of Washington (US)
Venue
Physical Review Letters
Publisher
American Physical Society (APS)
Published
1986-06-30
Volume
56
Issue
26
Pages
2797-2799
ISSN
0031-9007 (ISSN-L)
DOI
10.1103/physrevlett.56.2797
OpenAlex
W1965378868
Cited by
937
References
12
Citations by year
2026: 18 · 2025: 26 · 2024: 30 · 2023: 27 · 2022: 21 · 2021: 13 · 2020: 22 · 2019: 49 · 2018: 20 · 2017: 13 · 2016: 18 · 2015: 30 · 2014: 23 · 2013: 16 · 2012: 32
FWCI
23.94
Type
journal article
Language
en
Open access
closed
Licence
link.aps.org/licenses/aps-default-license (vor)
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
Keywords
quantum jumps, laser-cooled ions, barium ions, state detection, fluorescence suppression, telegraph signals, radio-frequency trap, optical pumping

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