Coherent Excitation of the Highly Forbidden Electric Octupole Transition in 
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Fürst, H.; Yeh, Chih-Han; Kalincev, D.; Kulosa, A. P.; Dreissen, Laura S.; Lange, R.; Benkler, E.; Huntemann, N.; Peik, E.

doi:10.1103/physrevlett.125.163001

Cited by 18 publications

(11 citation statements)

References 38 publications

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“…Finally, since the absolute optical frequency of the 2 S 1=2 → 2 D 5=2 transition for 172 Yb þ has recently been measured with precision at the Hz level [86], the absolute frequencies for all the other bosonic isotopes can be deduced from our isotope shift measurements. The results are summarized in Table II.…”

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confidence: 98%

Evidence for Nonlinear Isotope Shift in Yb+ Search for New Boson

et al. 2020

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We measure isotope shifts for five Yb þ isotopes with zero nuclear spin on two narrow optical quadrupole transitions 2 S 1=2 → 2 D 3=2 , 2 S 1=2 → 2 D 5=2 with an accuracy of ∼300 Hz. The corresponding King plot shows a 3 × 10 −7 deviation from linearity at the 3σ uncertainty level. Such a nonlinearity can indicate physics beyond the Standard Model (SM) in the form of a new bosonic force carrier, or arise from higherorder nuclear effects within the SM. We identify the quadratic field shift as a possible nuclear contributor to the nonlinearity at the observed scale, and show how the nonlinearity pattern can be used in future, more accurate measurements to separate a new-boson signal from nuclear effects.

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confidence: 98%

Evidence for Nonlinear Isotope Shift in Yb+ Search for New Boson

et al. 2020

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“…Laser-cooled ions in radio-frequency (rf) and Penning traps form Coulomb crystals, spatially ordered structures that arise due to a balance between trapping fields and Coulomb repulsion. Decades-long advancements in the preparation and control of cold ion crystals allow for precise manipulation of internal and external degrees of freedom [1], giving rise to applications spanning plasma physics [2,3], high-precision spectroscopy [4,5], cold molecules [6][7][8], and quantum computation [9][10][11] and simulation [12][13][14][15]. In these experiments, achieving the desired level of control has typically required an initial characterization of the ion positions, structural phases, normal mode frequencies, and sources of crystal heating.…”

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confidence: 99%

Radial Two-Dimensional Ion Crystals in a Linear Paul Trap

et al. 2021

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We present the first experimental study of radial two-dimensional ion crystals in a linear Paul trap. Using arrays of up to 19171 Yb + ions, we create this two-dimensional crystal phase by imposing a large ratio of axial to radial trapping potentials. We demonstrate that the structural phase boundaries and vibrational mode frequencies of this crystal are well-described by a simple pseudopotential approximation, despite the time-dependent ion positions driven by intrinsic micromotion. We further observe that micromotion-induced heating of the radial two-dimensional crystal is confined to the radial plane. Finally, we verify that the transverse motional modes, which are used in most ion-trap quantum simulation schemes, remain decoupled and cold in this geometry. Our results establish radial two-dimensional ion crystals as a robust experimental platform for realizing a variety of theoretical proposals in quantum computation and simulation.

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“…Using the previously published transition frequency with ∼150 kHz uncertainty [27] as a reference, we find our wavemeter's accuracy to be within ∼30 MHz. We note that an accurate measurement of the 2 S 1/2 ↔ 2 D 5/2 transition in the 172 Yb + isotope has recently been reported with an uncertainty of 4 Hz [42].…”

Section: Methodsmentioning

confidence: 75%

Precision characterization of the D5/22 state and the quadratic Zeeman coefficient in Yb+17

et al. 2021

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We report measurements of the branching fraction, hyperfine constant, and second-order Zeeman coefficient of the D 5/2 level in 171 Yb + with up to a two-orders-of-magnitude reduction in uncertainty compared to previously reported values. We estimate the electric quadrupole reduced matrix element of the S 1/2 ↔ D 5/2 transition to be 12.5(4) ea 2 0 . Furthermore, we determine the transition frequency of the F 7/2 ↔ 1 D[3/2] 3/2 at 760 nm with a ∼25-fold improvement in uncertainty. These measurements provide benchmarks for quantum-many-body atomic-physics calculations and provide valuable data for efforts to improve quantum information processors based on 171 Yb + .

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

Cited by 18 publications

References 38 publications

Evidence for Nonlinear Isotope Shift in Yb+ Search for New Boson

Evidence for Nonlinear Isotope Shift in Yb+ Search for New Boson

Radial Two-Dimensional Ion Crystals in a Linear Paul Trap

Precision characterization of the D5/22 state and the quadratic Zeeman coefficient in Yb+17

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