Y T Chen, Y Zheng, S N Miao, W X Shi, S T Chen, J W Zhang, L J Wang
{"title":"系统不确定度为7.8×10-15的激光冷却171Yb+微波时钟。","authors":"Y T Chen, Y Zheng, S N Miao, W X Shi, S T Chen, J W Zhang, L J Wang","doi":"10.1364/OL.570488","DOIUrl":null,"url":null,"abstract":"<p><p>We present a transportable laser-cooled ion microwave clock based on the ground-state hyperfine splitting of <sup>171</sup><i>Yb</i><sup>+</sup>. The system achieves a systematic uncertainty of 7.8×10<sup>-15</sup> and a short-term frequency stability of 9.5×10<sup>-13</sup>/<i>τ</i>. Enhancements to the magnetic-field system suppress the decoherence process in the multi-body ion ensemble and reduce the second-order Zeeman frequency shift by a factor of two. The absolute microwave frequency is measured to be 12 642 812 118.468 6(3) Hz, consistent with the previous measurements and demonstrating twice the precision of the current state-of-the-art.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6024-6027"},"PeriodicalIF":3.3000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Laser-cooled <sup>171</sup><i>Yb</i><sup>+</sup> microwave clock with a systematic uncertainty of 7.8×10<sup>-15</sup>.\",\"authors\":\"Y T Chen, Y Zheng, S N Miao, W X Shi, S T Chen, J W Zhang, L J Wang\",\"doi\":\"10.1364/OL.570488\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>We present a transportable laser-cooled ion microwave clock based on the ground-state hyperfine splitting of <sup>171</sup><i>Yb</i><sup>+</sup>. The system achieves a systematic uncertainty of 7.8×10<sup>-15</sup> and a short-term frequency stability of 9.5×10<sup>-13</sup>/<i>τ</i>. Enhancements to the magnetic-field system suppress the decoherence process in the multi-body ion ensemble and reduce the second-order Zeeman frequency shift by a factor of two. The absolute microwave frequency is measured to be 12 642 812 118.468 6(3) Hz, consistent with the previous measurements and demonstrating twice the precision of the current state-of-the-art.</p>\",\"PeriodicalId\":19540,\"journal\":{\"name\":\"Optics letters\",\"volume\":\"50 19\",\"pages\":\"6024-6027\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2025-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1364/OL.570488\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.570488","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
Laser-cooled 171Yb+ microwave clock with a systematic uncertainty of 7.8×10-15.
We present a transportable laser-cooled ion microwave clock based on the ground-state hyperfine splitting of 171Yb+. The system achieves a systematic uncertainty of 7.8×10-15 and a short-term frequency stability of 9.5×10-13/τ. Enhancements to the magnetic-field system suppress the decoherence process in the multi-body ion ensemble and reduce the second-order Zeeman frequency shift by a factor of two. The absolute microwave frequency is measured to be 12 642 812 118.468 6(3) Hz, consistent with the previous measurements and demonstrating twice the precision of the current state-of-the-art.
期刊介绍:
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.