Details

Autor(en) / Beteiligte

• Leopardi, Holly
• Beloy, Kyle
• Bothwell, Tobias
• Brewer, Samuel M
• Bromley, Sarah L
• Chen, Jwo-Sy
• Diddams, Scott A
• Fasano, Robert J
• Hassan, Youssef S
• Hume, David B
• Kedar, Dhruv
• Kennedy, Colin J
• Leibrandt, David R
• Ludlow, Andrew D
• McGrew, William F
• Milner, William R
• Nicolodi, Daniele
• Oelker, Eric
• Parker, Thomas E
• Robinson, John M
• Romisch, Stefania
• Sherman, Jeff A
• Sonderhouse, Lindsay
• Yao, Jian
• Ye, Jun
• Zhang, Xiaogang
• Fortier, Tara M

Titel

Measurement of the 27Al+ and 87Sr absolute optical frequencies

Ist Teil von

• Metrologia, 2021-01, Vol.58 (1)

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We perform absolute measurement of the 27Al+ single-ion and 87Sr neutral lattice clock frequencies at the National Institute of Standards and Technology and JILA at the University of Colorado against a global ensemble of primary frequency standards. Over an eight month period multiple measurements yielded the mean optical atomic transition frequencies νAl+=1121015393207859.50(0.36) Hz and νSr = 429 228 004 229  873.19(0.15) Hz, where the stated uncertainties are dominated by statistical noise and gaps in the observation interval ('dead-time' uncertainty).