تقرير
Measurement of a helium tune-out frequency: an independent test of quantum electrodynamics
| العنوان: | Measurement of a helium tune-out frequency: an independent test of quantum electrodynamics |
|---|---|
| المؤلفون: | Henson, B. M., Ross, J. A., Thomas, K. F., Kuhn, C. N., Shin, D. K., Hodgman, S. S., Zhang, Yong-Hui, Tang, Li-Yan, Drake, G. W. F., Bondy, A. T., Truscott, A. G., Baldwin, K. G. H. |
| المصدر: | Science 376 (2022) 199-203 |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Physics - Atomic Physics, Condensed Matter - Quantum Gases |
| الوصف: | Despite quantum electrodynamics (QED) being one of the most stringently tested theories underpinning modern physics, recent precision atomic spectroscopy measurements have uncovered several small discrepancies between experiment and theory. One particularly powerful experimental observable that tests QED independently of traditional energy level measurements is the `tune-out' frequency, where the dynamic polarizability vanishes and the atom does not interact with applied laser light. In this work, we measure the `tune-out' frequency for the $2^{3\!}S_1$ state of helium between transitions to the $2^{3\!}P$ and $3^{3\!}P$ manifolds and compare it to new theoretical QED calculations. The experimentally determined value of $725\,736\,700\,$$(40_{\mathrm{stat}},260_{\mathrm{syst}})$ MHz is within ${\sim} 1.7\sigma$ of theory ($725\,736\,252(9)$ MHz), and importantly resolves both the QED contributions (${\sim} 30 \sigma$) and novel retardation (${\sim} 2 \sigma$) corrections. Comment: Main text 6 pages, 4 figures, SI 21 pages 11 figures. Changed title from "Precision Measurement of the Helium $2^{3\!}S_1- 2^{3\!}P/3^{3\!}P$ Tune-Out Frequency as a Test of QED" |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1126/science.abk2502 |
| URL الوصول: | http://arxiv.org/abs/2107.00149 |
| رقم الأكسشن: | edsarx.2107.00149 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1126/science.abk2502 |
|---|