Coherent Excitation of the Highly Forbidden Electric Octupole Transition in Yb+172

H. A. Fürst; C.-H. Yeh; D. Kalincev; A. P. Kulosa; L. S. Dreissen; R. Lange; E. Benkler; N. Huntemann; E. Peik; T. E. Mehlstäubler

doi:10.1103/PhysRevLett.125.163001

Coherent Excitation of the Highly Forbidden Electric Octupole Transition in Yb+172

H. A. Fürst, C.-H. Yeh, D. Kalincev, A. P. Kulosa, L. S. Dreissen, R. Lange, E. Benkler, N. Huntemann, E. Peik, T. E. Mehlstäubler

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Abstract

We report on the first coherent excitation of the highly forbidden 2S1/2→2F7/2 electric octupole (E3) transition in a single trapped 172Yb+ ion, an isotope without nuclear spin. Using the transition in 171Yb+ as a reference, we determine the transition frequency to be 642 116 784 950 887.6(2.4) Hz. We map out the magnetic field environment using the forbidden 2S1/2→2D5/2 electric quadrupole (E2) transition and determine its frequency to be 729 476 867 027 206.8(4.4) Hz. Our results are a factor of 1×105 (3×105) more accurate for the E2 (E3) transition compared to previous measurements. The results open up the way to search for new physics via precise isotope shift measurements and improved tests of local Lorentz invariance using the metastable 2F7/2 state of Yb+.

Original language	English
Article number	163001
Pages (from-to)	1-6
Number of pages	6
Journal	Physical review letters
Volume	125
Issue number	16
Early online date	16 Oct 2020
DOIs	https://doi.org/10.1103/PhysRevLett.125.163001
Publication status	Published - 16 Oct 2020

Funding

We kindly acknowledge help from Stefan Weyers in the frequency measurement of the quadrupole transition and Atish Roy for support with computation of the state polarizabilities. We thank Michel Wolf and Tjeerd J. Pinkert for work on the magnetic field stabilization and Michael Drewsen for fruitful discussions. This project has been supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through Grant No. CRC SFB 1227 (DQ-mat, project B03) and through Germany’s Excellence Strategy EXC-2123 QuantumFrontiers–390837967. This work has been supported by the EMPIR Project No. 18SIB05 “Robust Optical Clocks for International Timescales.” This project has received funding from the EMPIR program cofinanced by the Participating States and from the European Unions Horizon 2020 research and innovation program. This work has been supported by the Max-Planck-RIKEN-PTB-Center for Time, Constants and Fundamental Symmetries.

Funders	Funder number
Max-Planck-RIKEN-PTB-Center for Time
European Metrology Programme for Innovation and Research	18SIB05
Deutsche Forschungsgemeinschaft	EXC-2123 QuantumFrontiers–390837967, CRC SFB 1227
Horizon 2020

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title = "Coherent Excitation of the Highly Forbidden Electric Octupole Transition in Yb+172",

abstract = "We report on the first coherent excitation of the highly forbidden 2S1/2→2F7/2 electric octupole (E3) transition in a single trapped 172Yb+ ion, an isotope without nuclear spin. Using the transition in 171Yb+ as a reference, we determine the transition frequency to be 642 116 784 950 887.6(2.4) Hz. We map out the magnetic field environment using the forbidden 2S1/2→2D5/2 electric quadrupole (E2) transition and determine its frequency to be 729 476 867 027 206.8(4.4) Hz. Our results are a factor of 1×105 (3×105) more accurate for the E2 (E3) transition compared to previous measurements. The results open up the way to search for new physics via precise isotope shift measurements and improved tests of local Lorentz invariance using the metastable 2F7/2 state of Yb+.",

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AU - Fürst, H. A.

AU - Yeh, C.-H.

AU - Kalincev, D.

AU - Kulosa, A. P.

AU - Dreissen, L. S.

AU - Lange, R.

AU - Benkler, E.

AU - Huntemann, N.

AU - Peik, E.

AU - Mehlstäubler, T. E.

PY - 2020/10/16

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N2 - We report on the first coherent excitation of the highly forbidden 2S1/2→2F7/2 electric octupole (E3) transition in a single trapped 172Yb+ ion, an isotope without nuclear spin. Using the transition in 171Yb+ as a reference, we determine the transition frequency to be 642 116 784 950 887.6(2.4) Hz. We map out the magnetic field environment using the forbidden 2S1/2→2D5/2 electric quadrupole (E2) transition and determine its frequency to be 729 476 867 027 206.8(4.4) Hz. Our results are a factor of 1×105 (3×105) more accurate for the E2 (E3) transition compared to previous measurements. The results open up the way to search for new physics via precise isotope shift measurements and improved tests of local Lorentz invariance using the metastable 2F7/2 state of Yb+.

AB - We report on the first coherent excitation of the highly forbidden 2S1/2→2F7/2 electric octupole (E3) transition in a single trapped 172Yb+ ion, an isotope without nuclear spin. Using the transition in 171Yb+ as a reference, we determine the transition frequency to be 642 116 784 950 887.6(2.4) Hz. We map out the magnetic field environment using the forbidden 2S1/2→2D5/2 electric quadrupole (E2) transition and determine its frequency to be 729 476 867 027 206.8(4.4) Hz. Our results are a factor of 1×105 (3×105) more accurate for the E2 (E3) transition compared to previous measurements. The results open up the way to search for new physics via precise isotope shift measurements and improved tests of local Lorentz invariance using the metastable 2F7/2 state of Yb+.

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Coherent Excitation of the Highly Forbidden Electric Octupole Transition in Yb+172

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