Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules

Augenbraun, Benjamin; Doyle, John M.; Zelevinsky, Tanya; Kozyryev, Ivan

doi:10.1103/physrevx.10.031022

Cited by 70 publications

(90 citation statements)

References 143 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The capability of learning excited electronic state properties of diatomic molecules may open the possibility of predicting Franck-Condon factors for interesting transitions regarding direct cooling of molecules. 47,[73][74][75][76] Finally, we would like to emphasize that there are around 7000 heteronuclear molecules, and we only utilize 256 of these for our GP regression model. The limited availability of spectroscopic data (only around 3% of possible heteronuclear diatomic molecules) shows the vast amount of spectroscopy that can be done within the realm of diatomic molecules.…”

Section: Discussionmentioning

confidence: 99%

On the relationship between spectroscopic constants of diatomic molecules: a machine learning approach

2021

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

On the relationship between spectroscopic constants of diatomic molecules: a machine learning approach

2021

View full text Add to dashboard Cite

show abstract

“…RaOCH þ 3 as a sensitive platform to search for a nuclear Schiff moment and probe new CP-violating physics in the octopole-deformed Ra nucleus. While our theoretical calculations do not replace the need for detailed spectroscopic studies on this particular species, they do illustrate advantageous structures that are quite general for symmetric and asymmetric top molecules [94,101,102]. These include polyatomic molecules containing other heavy nuclei such as Ba [103], Lu [39,104], Pa [105], and U [106] (as opposed to Ra), or a different, potentially chiral, ligand (as opposed to methoxy).…”

mentioning

confidence: 89%

Probing Fundamental Symmetries of Deformed Nuclei in Symmetric Top Molecules

Hutzler

2021

Phys. Rev. Lett.

View full text Add to dashboard Cite

Precision measurements of Schiff moments in heavy, deformed nuclei are sensitive probes of beyond standard model T, P violation in the hadronic sector. While the most stringent limits on Schiff moments to date are set with diamagnetic atoms, polar polyatomic molecules can offer higher sensitivities with unique experimental advantages. In particular, symmetric top molecular ions possess K doublets of opposite parity with especially small splittings, leading to full polarization at low fields, internal comagnetometer states useful for rejection of systematic effects, and the ability to perform sensitive searches for T, P violation using a small number of trapped ions containing heavy exotic nuclei. We consider the symmetric top cation 225RaOCH þ 3 as a prototypical and candidate platform for performing sensitive nuclear Schiff measurements and characterize in detail its internal structure using relativistic ab initio methods. The combination of enhancements from a deformed nucleus, large polarizability, and unique molecular structure make this molecule a promising platform to search for fundamental symmetry violation even with a single trapped ion.

show abstract

“…This is particularly notable as recent theoretical and experimental work indicates that these criteria are satisfied not only by linear, triatomic molecules, but also by several classes of molecules of even greater structural complexity. Several candidate species have already been identified, spanning nonlinear symmetric top molecules (e.g., CaOCH 3 , SrOCH 3 ) [2], asymmetric top molecules (e.g., CaSH, CaNH 2 ) [57], and complex organic molecules containing carbon rings (e.g., CaOC 6 H 5 , SrOC 9 H 2 F 9 ) [3,58].…”

Section: Inset)mentioning

confidence: 99%

Magneto-Optical Trapping and Sub-Doppler Cooling of a Polyatomic Molecule

Vilas,

Hallas,

Anderegg

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

We report magneto-optical trapping (MOT) of a polyatomic molecule, calcium monohydroxide (CaOH). The MOT contains 2.0(5) × 10 4 CaOH molecules at a peak density of 3.0(8) × 10 6 cm −3 . CaOH molecules are further sub-Doppler laser cooled in an optical molasses, to a temperature of 110(4) µK. The temperatures and densities achieved here make CaOH a viable candidate for a wide variety of quantum science applications, including the creation of optical tweezer arrays of CaOH molecules. This work also suggests that laser cooling and magneto-optical trapping of many other polyatomic species [1-3] will be both feasible and practical.

show abstract

Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules

Cited by 70 publications

References 143 publications

On the relationship between spectroscopic constants of diatomic molecules: a machine learning approach

On the relationship between spectroscopic constants of diatomic molecules: a machine learning approach

Probing Fundamental Symmetries of Deformed Nuclei in Symmetric Top Molecules

Magneto-Optical Trapping and Sub-Doppler Cooling of a Polyatomic Molecule

Contact Info

Product

Resources

About