TY - JOUR
AU - M. Swallows
AU - M. Martin
AU - M. Bishof
AU - Craig Benko
AU - Yige Lin
AU - S. Blatt
AU - Ana Maria Rey
AU - Jun Ye
AB - We describe recent experimental progress with the JILA Sr optical frequency standard, which has a systematic uncertainty at the 10-(16) fractional frequency level. An upgraded laser system has recently been constructed in our lab which may allow the JILA Sr standard to reach the standard quantum measurement limit and achieve record levels of stability. To take full advantage of these improvements, it will be necessary to operate a lattice clock with a large number of atoms, and systematic frequency shifts resulting from atomic interactions will become increasingly important. We discuss how collisional frequency shifts can arise in an optical lattice clock employing fermionic atoms and describe a novel method by which such systematic effects can be suppressed.
BT - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
DA - 2012-03
DO - 10.1109/TUFFC.2012.2210
N2 - We describe recent experimental progress with the JILA Sr optical frequency standard, which has a systematic uncertainty at the 10-(16) fractional frequency level. An upgraded laser system has recently been constructed in our lab which may allow the JILA Sr standard to reach the standard quantum measurement limit and achieve record levels of stability. To take full advantage of these improvements, it will be necessary to operate a lattice clock with a large number of atoms, and systematic frequency shifts resulting from atomic interactions will become increasingly important. We discuss how collisional frequency shifts can arise in an optical lattice clock employing fermionic atoms and describe a novel method by which such systematic effects can be suppressed.
PY - 2012
SE - 416
SP - 416
EP - 425
T2 - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
TI - Operating a 87Sr optical lattice clock with high precision and at high density
VL - 59
SN - 0885-3010
ER -