Two-Photon Vibrational Transitions in                          			 			 			 			16O2+ as Probes of Variation of the Proton-to-Electron Mass Ratio

Carollo, Ryan; Frenett, Alexander; Hanneke, David

doi:10.3390/atoms7010001

Cited by 17 publications

(40 citation statements)

References 113 publications

(190 reference statements)

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“…Specifically, measurements on H 3 + , which has a triangular equilibrium geometry, have been used to probe the doubly degenerate bending mode at the barrier to linearity [19]. To achieve highest spectral resolution, twophoton overtone spectroscopy is being pursued [2,20].…”

Section: Introductionmentioning

confidence: 99%

Vibrational overtone spectroscopy of cold trapped hydroxyl anions

2020

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The second vibrational overtone transition, ν , J = 3, 1 ← ν, J = 0, 0, in OH − confined in a 22-pole radio frequency ion trap has been measured using a laser induced reaction with molecular hydrogen. The resultant spectral line is found at 10 150.94(2) cm −1 and the excitation rate of this overtone excitation is obtained, which sensitively probes the molecular potential surface. The Doppler broadened line profile is used to determine the translational temperature of the ions in buffer gas temperatures ranging from 9(1) to 52(1) K. The translational temperatures closely follow those of the buffer gas over this range, including an offset caused by radio frequency heating. In comparison with previous measurements of the rotational temperatures of trapped ions, we show that translational and rotational temperatures do not equilibrate at the low buffer gas temperatures.

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Section: Introductionmentioning

confidence: 99%

Vibrational overtone spectroscopy of cold trapped hydroxyl anions

2020

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“…This success opens the door to tighter constraints on µ-variations than what was previously achieved with molecular systems. A highly competitive approach is being pursued for the O + 2 molecular ion [318,340,341], where the large molecular binding energies, and therefore high absolute sensitivities to µ, combine with a promising level of quantum control that parallels that for atomic ions. An alternative method is possible in polyatomic molecules, where two vibrational states arising from distinct vibrational modes may be accidentally near-degenerate.…”

Section: State-of-the-art and Next-generation Molecular Dm Clock Sear...mentioning

confidence: 99%

New Horizons: Scalar and Vector Ultralight Dark Matter

Antypas¹,

Banerjee²,

Bartram³

et al. 2022

Preprint

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The last decade has seen unprecedented effort in dark matter model building at all mass scales coupled with the design of numerous new detection strategies. Transformative advances in quantum technologies have led to a plethora of new high-precision quantum sensors and dark matter detection strategies for ultralight (< 10 eV) bosonic dark matter that can be described by an oscillating classical, largely coherent field. This white paper focuses on searches for wavelike scalar and vector dark matter candidates.

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“…Nonetheless, the atomic limit on m p /m e relies on the Cs microwave clock and there are prospects for molecular clocks with optical-level sensitivities. Optical transitions in trapped molecular ions [257][258][259] or lattice-confined neutral molecules [260] are projected to have systematic and statistical limits comparable to those of the best optical atomic clocks. Accidental near-degeneracies between levels with differential sensitivity to α-or m p /m e -variation are common in molecules and provide statistical enhancement -allowing optical sensitivities in measurements that take place in the microwave.…”

Section: A Clock Randdmentioning

confidence: 99%

Snowmass 2021: Quantum Sensors for HEP Science -- Interferometers, Mechanics, Traps, and Clocks

Carney¹,

Cecil²,

Ellis³

et al. 2022

Preprint

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A wide range of quantum sensing technologies are rapidly being integrated into the experimental portfolio of the high energy physics community. Here we focus on sensing with atomic interferometers; mechanical devices read out with optical or microwave fields; precision spectroscopic methods with atomic, nuclear, and molecular systems; and trapped atoms and ions. We give a variety of detection targets relevant to particle physics for which these systems are uniquely poised to contribute. This includes experiments at the precision frontier like measurements of the electron dipole moment and electromagnetic fine structure constant and searches for fifth forces and modifications of Newton's law of gravity at micron-to-millimeter scales. It also includes experiments relevant to the cosmic frontier, especially searches for gravitional waves and a wide variety of dark matter candidates spanning heavy, WIMP-scale, light, and ultra-light mass ranges. We emphasize here the need for more developments both in sensor technology and integration into the broader particle physics community.

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Two-Photon Vibrational Transitions in 16O2+ as Probes of Variation of the Proton-to-Electron Mass Ratio

Cited by 17 publications

References 113 publications

Vibrational overtone spectroscopy of cold trapped hydroxyl anions

Vibrational overtone spectroscopy of cold trapped hydroxyl anions

New Horizons: Scalar and Vector Ultralight Dark Matter

Snowmass 2021: Quantum Sensors for HEP Science -- Interferometers, Mechanics, Traps, and Clocks

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