Precision spectroscopy and density-dependent frequency shifts in ultracold Sr.
نویسندگان
چکیده
By varying the density of an ultracold 88Sr sample from 10(9) to>10(12) cm(-3), we make the first definitive measurement of the density-related frequency shift and linewidth broadening of the 1S0-3P1 optical clock transition in an alkaline earth system. In addition, we report the most accurate measurement to date of the 88Sr 1S0-3P1 optical clock transition frequency. Including a detailed analysis of systematic errors, the frequency is [434 829 121 312 334+/-20(stat)+/-33(syst)] Hz.
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عنوان ژورنال:
- Physical review letters
دوره 94 15 شماره
صفحات -
تاریخ انتشار 2005