An Optical Lattice Clock with Spin-polarized 87Sr Atoms

Abstract

We present a new evaluation of an 87Sr optical lattice clock using spin polarized atoms. The frequency of the 1S0-3P0 clock transition is found to be 429 228 004 229 873.6 Hz with a fractional accuracy of 2.6 10^{-15}, a value that is comparable to the frequency difference between the various primary standards throughout the world. This measurement is in excellent agreement with a previous one of similar accuracy.

References in corpus (6)

• Multipolar theory of black-body radiation shift of atomic energy levels and its implications for optical lattice clocks
• Interference-filter-stabilized external-cavity diode lasers
• Nuclear Spin Effects in Optical Lattice Clocks
• ${}^{87}$Sr lattice clock with inaccuracy below 10${}^{-15}$
• Optical atomic coherence at the one-second time scale
• Improved frequency measurement of a one-dimensional optical lattice clock with a spin-polarized fermionic ${}^{87}$Sr isotope

Cited by in corpus (4)

• Sr lattice clock at 1x10^{-16} fractional uncertainty by remote optical evaluation with a Ca clock
• Quantum State Engineering and Precision Metrology using State-Insensitive Light Traps
• The absolute frequency of the 87Sr optical clock transition
• Measuring the frequency of a Sr optical lattice clock using a 120-km coherent optical transfer