| Author(s): |
Andrew D. Ludlow; Nathan D. Lemke; Jeffrey A. Sherman; Christopher W. Oates; G. Quemener; J. von Stecher; A.M. Rey; |
| Title: |
Cold-collision-shift cancelation and inelastic scattering in a Yb optical lattice clock |
| Published: |
November 28, 2011 |
| Abstract: |
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. |
| Citation: |
Physical Review A |
| Volume: |
84 |
| Pages: |
pp. 052724-1 - 052724-5 |
| Keywords: |
cold collision;collision shift;inelastic scatter;optical lattice clock;p-wave collision;two-body loss;ytterbium |
| Research Areas: |
Physics |
