تقرير
Accurate Determination of Blackbody Radiation Shifts in a Strontium Molecular Lattice Clock
| العنوان: | Accurate Determination of Blackbody Radiation Shifts in a Strontium Molecular Lattice Clock |
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| المؤلفون: | Iritani, B., Tiberi, E., Skomorowski, W., Moszynski, R., Borkowski, M., Zelevinsky, T. |
| المصدر: | Phys. Rev. Lett. 131, 263201 (2023) |
| سنة النشر: | 2023 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Atomic Physics, Physics - Atomic and Molecular Clusters, Physics - Chemical Physics |
| الوصف: | Molecular lattice clocks enable the search for new physics, such as fifth forces or temporal variations of fundamental constants, in a manner complementary to atomic clocks. Blackbody radiation (BBR) is a major contributor to the systematic error budget of conventional atomic clocks and is notoriously difficult to characterize and control. Here, we combine infrared Stark-shift spectroscopy in a molecular lattice clock and modern quantum chemistry methods to characterize the polarizabilities of the Sr$_2$ molecule from dc to infrared. Using this description, we determine the static and dynamic blackbody radiation shifts for all possible vibrational clock transitions to the $10^{-16}$ level. This constitutes an important step towards mHz-level molecular spectroscopy in Sr$_2$, and provides a framework for evaluating BBR shifts in other homonuclear molecules. Comment: 7 pages, 4 figures, added supplemental with 3 extra figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.131.263201 |
| URL الوصول: | http://arxiv.org/abs/2306.00981 |
| رقم الأكسشن: | edsarx.2306.00981 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.131.263201 |
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