Report
Frequency measurements of superradiance from the strontium clock transition
| العنوان: | Frequency measurements of superradiance from the strontium clock transition |
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| المؤلفون: | Norcia, Matthew A., Cline, Julia R. K., Muniz, Juan A., Robinson, John M., Hutson, Ross B., Goban, Akihisa, Marti, G. Edward, Ye, Jun, Thompson, James K. |
| المصدر: | Phys. Rev. X 8, 021036 (2018) |
| سنة النشر: | 2017 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Atomic Physics, Physics - Optics |
| الوصف: | We present the first characterization of the spectral properties of superradiant light emitted from the ultra-narrow, 1 mHz linewidth optical clock transition in an ensemble of cold $^{87}$Sr atoms. Such a light source has been proposed as a next-generation active atomic frequency reference, with the potential to enable high-precision optical frequency references to be used outside laboratory environments. By comparing the frequency of our superradiant source to that of a state-of-the-art cavity-stabilized laser and optical lattice clock, we observe a fractional Allan deviation of $6.7(1)\times 10^{-16}$ at 1 second of averaging, establish absolute accuracy at the 2 Hz ($4\times 10^{-15}$ fractional frequency) level, and demonstrate insensitivity to key environmental perturbations. Comment: 7 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevX.8.021036 |
| URL الوصول: | http://arxiv.org/abs/1711.10407 |
| رقم الانضمام: | edsarx.1711.10407 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevX.8.021036 |
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