Coherent excitation of the highly forbidden electric octupole transition in ${}^{172}$Yb${}^{+}$

Abstract

We report on the first coherent excitation of the highly forbidden ${}^2{S}_{1/2}\to {}^2{F}_{7/2}$ electric octupole (E3) transition in a single trapped ${}^{172}$Yb${}^{+}$ ion, an isotope without nuclear spin. Using the transition in ${}^{171}$Yb${}^{+}$ as a reference, we determine the transition frequency to be $642116784950887.6(2.4)$Hz. We map out the magnetic field environment using the forbidden ${}^2{S}_{1/2}\to {}^2{D}_{5/2}$ electric quadrupole (E2) transition and determine its frequency to be $729476867027206.8(4.4)$Hz. Our results are a factor of $1\times 10^5$ ($3\times 10^5$) 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 ${}^2{F}_{7/2}$ state of Yb${}^{+}$.

6 pages, 5 figures

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Cited by in corpus (14)

• Improved bounds on Lorentz violation from composite-pulse Ramsey spectroscopy in a trapped ion
• Radial two-dimensional ion crystals in a linear Paul trap
• Probing new bosons and nuclear structure with ytterbium isotope shifts
• Scalable hyperfine qubit state detection via electron shelving in the ${}^2$D${}_{5/2}$ and ${}^2$F${}_{7/2}$ manifolds in ${}^{171}$Yb${}^{+}$
• Prospects of a Pb${}^{2+}$ ion clock
• Grating design methodology for tailored free-space beam-forming
• Precision Characterization of the ${}^2$D${}_{5/2}$ State and Quadratic Zeeman Coefficient in ${}^{171}$Yb${}^{+}$
• Coherent excitation of a $\mu$Hz scale optical magnetic quadrupole transition
• Robust and scalable rf spectroscopy in first-order magnetic sensitive states at second-long coherence time
• Understanding inner-shell excitations in molecules through spectroscopy of the 4f hole states of YbF
• Compact transportable 171Yb+ single-ion optical fully automated clock with 4.9E-16 relative instability
• Scalable chip-based 3D ion traps
• Nuclear spin quenching of the ${}^2{S}_{1/2}\to {}^2{F}_{7/2}$ electric octupole transition in ${}^{173}$Yb${}^{+}$
• Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson