Cold-collision-shift cancelation and inelastic scattering in a Yb optical lattice clock
Andrew D. Ludlow, Nathan D. Lemke, Jeffrey A. Sherman, Christopher W. Oates, G. Quemener, J. von Stecher, A.M. Rey
Recently, ρ-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 5 × 10-18 fractional frequency level. We report inelastic two-body loss rates for 3P0-3P0 and 1S0 -3P 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.
, Lemke, N.
, Sherman, J.
, Oates, C.
, Quemener, G.
, von, J.
and Rey, A.
Cold-collision-shift cancelation and inelastic scattering in a Yb optical lattice clock, Physical Review A
(Accessed November 28, 2023)