Ultracold strontium clock: applications to the measurement of fundamental constant variations
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Ultracold strontium clock : applications to the measurement of fundamental constant variations. / Ludlow, A. D.; Blatt, S.; Zelevinsky, T.; Campbell, G. K.; Martin, M. J.; Thomsen, Jan Westenkær; Boyd, M. M.; Ye, J.
In: European Physical Journal. Special topics, Vol. 163, No. 1, 2008, p. 9-18.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Ultracold strontium clock
T2 - applications to the measurement of fundamental constant variations
AU - Ludlow, A. D.
AU - Blatt, S.
AU - Zelevinsky, T.
AU - Campbell, G. K.
AU - Martin, M. J.
AU - Thomsen, Jan Westenkær
AU - Boyd, M. M.
AU - Ye, J.
PY - 2008
Y1 - 2008
N2 - We describe the application of high accuracy Srspectroscopy to the measurement of the variation of thefundamental constants of nature. We first describe recent progressof the JILA Sr optical frequency standard, with a systematicuncertainty evaluation at the 10-16 fractional frequencylevel. Using recent internationally based measurements of the Srclock frequency, we show improved constraints of gravitational andtemporal changes in the fine structure constant and theelectron-proton mass ratio. Finally, we describe how ultracoldatomic strontium, confined in an optical lattice, can beassociated into molecular dimers and be used for amodel-independent measurement of the variation of theelectron-proton mass ratio.
AB - We describe the application of high accuracy Srspectroscopy to the measurement of the variation of thefundamental constants of nature. We first describe recent progressof the JILA Sr optical frequency standard, with a systematicuncertainty evaluation at the 10-16 fractional frequencylevel. Using recent internationally based measurements of the Srclock frequency, we show improved constraints of gravitational andtemporal changes in the fine structure constant and theelectron-proton mass ratio. Finally, we describe how ultracoldatomic strontium, confined in an optical lattice, can beassociated into molecular dimers and be used for amodel-independent measurement of the variation of theelectron-proton mass ratio.
U2 - 10.1140/epjst/e2008-00806-8
DO - 10.1140/epjst/e2008-00806-8
M3 - Journal article
VL - 163
SP - 9
EP - 18
JO - European Physical Journal. Special Topics
JF - European Physical Journal. Special Topics
SN - 1951-6355
IS - 1
ER -
ID: 17270358