Precision spectroscopy and laser-cooling scheme of a radium-containing molecule
Udrescu, S. M., Wilkins, S. G., Breier, A.A., Athanasakis-Kaklamanakis, M., Garcia Ruiz, R. F., Au, M., Belošević, I., Berger, R., Bissell, M. L., Binnersley, C. L., Brinson, A. J., Chrysalidis, K., Cocolios, T. E., de Groote, R. P., Dorne, A., Flanagan, K. T., Franchoo, S., Gaul, K., Geldhof, S., . . . Zülch, C. (2024). Precision spectroscopy and laser-cooling scheme of a radium-containing molecule. Nature Physics, Early online. https://doi.org/10.1038/s41567-023-02296-w
Julkaistu sarjassa
Nature PhysicsPäivämäärä
2024Pääsyrajoitukset
Embargo päättyy: 2024-07-10Pyydä artikkeli tutkijalta
Tekijänoikeudet
© 2024 Springer Nature
Molecules containing heavy radioactive nuclei are predicted to be extremely sensitive to violations of the fundamental symmetries of nature. The nuclear octupole deformation of certain radium isotopes massively boosts the sensitivity of radium monofuoride molecules to symmetry-violating nuclear properties. Moreover, these molecules are predicted to be laser coolable. Here we report measurements of the rovibronic structure of radium monofuoride molecules, which allow the determination of their laser cooling scheme. We demonstrate an improvement in resolution of more than two orders of magnitude compared to the state of the art. Our developments allowed measurements of minuscule amounts of hot molecules, with only a few hundred per second produced in a particular rotational state. The combined precision and sensitivity achieved in this work ofer opportunities for studies of radioactive molecules of interest in fundamental physics, chemistry and astrophysics.
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Nature Publishing GroupISSN Hae Julkaisufoorumista
1745-2473Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/202088812
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Isotope Shifts of Radium Monofluoride Molecules
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Garcia Ruiz, R. F.; Berger, R.; Billowes, J.; Binnersley, C. L.; Bissell, M. L.; Breier, A. A.; Brinson, A. J.; Chrysalidis, K.; Cocolios, T. E.; Cooper, B. S.; Flanagan, K. T.; Giesen, T. F.; de Groote, R. P.; Franchoo, S.; Gustafsson, F. P.; Isaev, T. A.; Koszorús, Á.; Neyens, G.; Perrett, H. A.; Ricketts, C. M.; Rothe, S.; Schweikhard, L.; Vernon, A. R.; Wendt, K. D. A.; Wienholtz, F.; Wilkins, S. G.; Yang, X. F. (Nature Publishing Group, 2020)Molecular spectroscopy offers opportunities for the exploration of the fundamental laws of nature and the search for new particle physics beyond the standard model1–4. Radioactive molecules—in which one or more of the atoms ... -
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