October 30, 2019
Author(s)
Jian Yao, Jeffrey A. Sherman, Tara M. Fortier, Andrew D. Ludlow, Holly Leopardi, Thomas E. Parker, William F. McGrew, Scott A. Diddams, Judah Levine
… a fractional frequency uncertainty of 1.4x10−16 at 30 days and reaching the 10−17 decade at 50 days, with …