TY - GEN
T1 - Precision measurement of fermionic collisions using an 87Sr optical lattice clock with 1 × 10-16 inaccuracy
AU - Swallows....[et al.], M. D.
AU - Campbell, G.K.
AU - Boyd, M.M.
AU - Thomsen, Jan Westenkær
PY - 2010/3/4
Y1 - 2010/3/4
N2 - We describe recent progress on the JILA Sr optical frequency standard, which has a systematic uncertainty at the 10-16 fractional frequency level. The dominant contributions to the systematic error are from blackbody radiation shifts and collisional shifts. We discuss the blackbody radiation shift and propose measurements and experimental protocols that should reduce its systematic contribution. We discuss how collisional frequency shifts can arise in an optical lattice clock employing fermionic atoms, and experimentally demonstrate how the uncertainty in this density-dependent correction to the clock frequency is reduced.
AB - We describe recent progress on the JILA Sr optical frequency standard, which has a systematic uncertainty at the 10-16 fractional frequency level. The dominant contributions to the systematic error are from blackbody radiation shifts and collisional shifts. We discuss the blackbody radiation shift and propose measurements and experimental protocols that should reduce its systematic contribution. We discuss how collisional frequency shifts can arise in an optical lattice clock employing fermionic atoms, and experimentally demonstrate how the uncertainty in this density-dependent correction to the clock frequency is reduced.
U2 - 10.1109/tuffc.2010.1449
DO - 10.1109/tuffc.2010.1449
M3 - Conference article
C2 - 20211772
SN - 0885-3010
VL - 57
SP - 574
EP - 582
JO - IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control
JF - IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control
IS - 3
ER -