Collisional Losses, Decoherence, and Frequency Shifts in Optical Lattice Clocks with Bosons
- 28 August 2009
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 103 (9), 090801
- https://doi.org/10.1103/physrevlett.103.090801
Abstract
We have quantified collisional losses, decoherence and the collision shift in a one-dimensional optical lattice clock on the highly forbidden transition at 698 nm with bosonic . We were able to distinguish two loss channels: inelastic collisions between atoms in the upper and lower clock state and atoms in the upper clock state only. Based on the measured coefficients, we determine the operation parameters at which a 1D-lattice clock with shows no degradation due to collisions on the fractional uncertainty level of .
Other Versions
This publication has 21 references indexed in Scilit:
- Alkaline-Earth-Metal Atoms as Few-Qubit Quantum RegistersPhysical Review Letters, 2009
- The absolute frequency of the87Sr optical clock transitionMetrologia, 2008
- Limits to time variation of fundamental constants from comparisons of atomic frequency standardsReports on Progress in Physics, 2007
- Optical Feshbach resonances of alkaline-earth-metal atoms in a one- or two-dimensional optical latticePhysical Review A, 2006
- Magnetic Field-Induced Spectroscopy of Forbidden Optical Transitions with Application to Lattice-Based Optical Atomic ClocksPhysical Review Letters, 2006
- Calcium optical frequency standard with ultracold atoms: Approachingrelative uncertaintyPhysical Review A, 2005
- Study of coupled states for the (4s2)1S + (4s4p)3P asymptote of Ca2The European Physical Journal D, 2005
- Properties of the triplet metastable states of the alkaline-earth-metal atomsPhysical Review A, 2004
- Interatomic collisions in a tightly confined Bose gasPhysical Review A, 2001
- Measurement of the cross sections for collisional broadening of the intercombination transitions in calcium and strontiumPhysical Review A, 1994