Observation of the S01→P03 clock transition in Al+27

T. Rosenband, P. O. Schmidt, D. B. Hume, W. M. Itano, T. M. Fortier, J. E. Stalnaker, Kyoungsik Kim, S. A. Diddams, J. C J Koelemeij, J. C. Bergquist, D. J. Wineland

Research output: Contribution to journalArticle

165 Citations (Scopus)

Abstract

We report, for the first time, laser spectroscopy of the S01→P03 clock transition in Al+27. A single aluminum ion and a single beryllium ion are simultaneously confined in a linear Paul trap, coupled by their mutual Coulomb repulsion. This coupling allows the beryllium ion to sympathetically cool the aluminum ion and also enables transfer of the aluminum's electronic state to the beryllium's hyperfine state, which can be measured with high fidelity. These techniques are applied to measure the clock transition frequency ν=1121015393207851(6)Hz. They are also used to measure the lifetime of the metastable clock state τ=20.6±1.4s, the ground state S01 g factor gS=-0.00079248(14), and the excited state P03 g factor gP=-0.00197686(21), in units of the Bohr magneton.

Original languageEnglish
Article number220801
JournalPhysical Review Letters
Volume98
Issue number22
DOIs
Publication statusPublished - 2007 May 31

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clocks
beryllium
aluminum
ions
Bohr magneton
laser spectroscopy
traps
life (durability)
ground state
electronics
excitation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Rosenband, T., Schmidt, P. O., Hume, D. B., Itano, W. M., Fortier, T. M., Stalnaker, J. E., ... Wineland, D. J. (2007). Observation of the S01→P03 clock transition in Al+27. Physical Review Letters, 98(22), [220801]. https://doi.org/10.1103/PhysRevLett.98.220801
Rosenband, T. ; Schmidt, P. O. ; Hume, D. B. ; Itano, W. M. ; Fortier, T. M. ; Stalnaker, J. E. ; Kim, Kyoungsik ; Diddams, S. A. ; Koelemeij, J. C J ; Bergquist, J. C. ; Wineland, D. J. / Observation of the S01→P03 clock transition in Al+27. In: Physical Review Letters. 2007 ; Vol. 98, No. 22.
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Rosenband, T, Schmidt, PO, Hume, DB, Itano, WM, Fortier, TM, Stalnaker, JE, Kim, K, Diddams, SA, Koelemeij, JCJ, Bergquist, JC & Wineland, DJ 2007, 'Observation of the S01→P03 clock transition in Al+27', Physical Review Letters, vol. 98, no. 22, 220801. https://doi.org/10.1103/PhysRevLett.98.220801

Observation of the S01→P03 clock transition in Al+27. / Rosenband, T.; Schmidt, P. O.; Hume, D. B.; Itano, W. M.; Fortier, T. M.; Stalnaker, J. E.; Kim, Kyoungsik; Diddams, S. A.; Koelemeij, J. C J; Bergquist, J. C.; Wineland, D. J.

In: Physical Review Letters, Vol. 98, No. 22, 220801, 31.05.2007.

Research output: Contribution to journalArticle

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AU - Stalnaker, J. E.

AU - Kim, Kyoungsik

AU - Diddams, S. A.

AU - Koelemeij, J. C J

AU - Bergquist, J. C.

AU - Wineland, D. J.

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N2 - We report, for the first time, laser spectroscopy of the S01→P03 clock transition in Al+27. A single aluminum ion and a single beryllium ion are simultaneously confined in a linear Paul trap, coupled by their mutual Coulomb repulsion. This coupling allows the beryllium ion to sympathetically cool the aluminum ion and also enables transfer of the aluminum's electronic state to the beryllium's hyperfine state, which can be measured with high fidelity. These techniques are applied to measure the clock transition frequency ν=1121015393207851(6)Hz. They are also used to measure the lifetime of the metastable clock state τ=20.6±1.4s, the ground state S01 g factor gS=-0.00079248(14), and the excited state P03 g factor gP=-0.00197686(21), in units of the Bohr magneton.

AB - We report, for the first time, laser spectroscopy of the S01→P03 clock transition in Al+27. A single aluminum ion and a single beryllium ion are simultaneously confined in a linear Paul trap, coupled by their mutual Coulomb repulsion. This coupling allows the beryllium ion to sympathetically cool the aluminum ion and also enables transfer of the aluminum's electronic state to the beryllium's hyperfine state, which can be measured with high fidelity. These techniques are applied to measure the clock transition frequency ν=1121015393207851(6)Hz. They are also used to measure the lifetime of the metastable clock state τ=20.6±1.4s, the ground state S01 g factor gS=-0.00079248(14), and the excited state P03 g factor gP=-0.00197686(21), in units of the Bohr magneton.

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Rosenband T, Schmidt PO, Hume DB, Itano WM, Fortier TM, Stalnaker JE et al. Observation of the S01→P03 clock transition in Al+27. Physical Review Letters. 2007 May 31;98(22). 220801. https://doi.org/10.1103/PhysRevLett.98.220801