Cold collision shift cancelation and inelastic scattering in a Yb optical lattice clock

Details Cold collision shift cancelation and inelastic scattering in a Yb optical lattice clock Cold collision shift cancelation and inelastic scattering in a Yb optical lattice clock

2011-08-05

arxiv.org/abs/1108.1379v2

Phys. Rev. A 84, 052724 (2011)

Physics

Atomic Physics

Scientific paper

10.1103/PhysRevA.84.052724

Recently, p-wave cold collisions were shown to dominate the density-dependent shift of the clock transition frequency in a 171Yb optical lattice clock. Here we demonstrate that by operating such a system at the proper excitation fraction, the cold collision shift is canceled below the 5x10^{-18} fractional frequency level. We report inelastic two-body loss rates for 3P0-3P0 and 1S0-3P0 scattering. We also measure interaction shifts in an unpolarized atomic sample. Collision measurements for this spin-1/2 171Yb system are relevant for high performance optical clocks as well as strongly-interacting systems for quantum information and quantum simulation applications.

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