{"title":"基于交感冷却的镉离子微波时钟研究进展","authors":"Y. Zuo, J. Z. Han, L. Wei, J. Zhang, L. J. Wang","doi":"10.1109/FCS.2018.8597554","DOIUrl":null,"url":null,"abstract":"The precision of Cadmium ion microwave clock based on linear quadrupole trap is mainly determined by the measurement accuracy of hyperfine splitting of the ground state of 113Cd+. To reduce the second order Doppler frequency shift(SODFS), which is one of the main frequency shifts, we take advantages of sympathetic cooling by 24Mg+ions to keep the Cadmium ion clouds at relatively low temperature during the interrogation of clock transition. By comparing the experiment results with molecular-dynamics(MD) simulation, we discuss the efficiency of sympathetic cooling and its influence on our clock's performance.","PeriodicalId":180164,"journal":{"name":"2018 IEEE International Frequency Control Symposium (IFCS)","volume":"197 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Progress Towards a Cadimium Ion Microwave Clock Based on Sympathetic Cooling\",\"authors\":\"Y. Zuo, J. Z. Han, L. Wei, J. Zhang, L. J. Wang\",\"doi\":\"10.1109/FCS.2018.8597554\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The precision of Cadmium ion microwave clock based on linear quadrupole trap is mainly determined by the measurement accuracy of hyperfine splitting of the ground state of 113Cd+. To reduce the second order Doppler frequency shift(SODFS), which is one of the main frequency shifts, we take advantages of sympathetic cooling by 24Mg+ions to keep the Cadmium ion clouds at relatively low temperature during the interrogation of clock transition. By comparing the experiment results with molecular-dynamics(MD) simulation, we discuss the efficiency of sympathetic cooling and its influence on our clock's performance.\",\"PeriodicalId\":180164,\"journal\":{\"name\":\"2018 IEEE International Frequency Control Symposium (IFCS)\",\"volume\":\"197 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 IEEE International Frequency Control Symposium (IFCS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/FCS.2018.8597554\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE International Frequency Control Symposium (IFCS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/FCS.2018.8597554","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Progress Towards a Cadimium Ion Microwave Clock Based on Sympathetic Cooling
The precision of Cadmium ion microwave clock based on linear quadrupole trap is mainly determined by the measurement accuracy of hyperfine splitting of the ground state of 113Cd+. To reduce the second order Doppler frequency shift(SODFS), which is one of the main frequency shifts, we take advantages of sympathetic cooling by 24Mg+ions to keep the Cadmium ion clouds at relatively low temperature during the interrogation of clock transition. By comparing the experiment results with molecular-dynamics(MD) simulation, we discuss the efficiency of sympathetic cooling and its influence on our clock's performance.
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