Cold-collision-shift Cancellation and Inelastic Scattering in a Yb Optical Lattice Clock
Abstract
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 5 x 10 to the minus 18th power 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 10, 2011
- Accession Number
- ADA632675
Entities
People
- A. D. Ludlow
- A. M. Rey
- C. W. Oates
- G. Quemener
- J. A. Sherman
- J. Von Stecher
- N. D. Lemke
Organizations
- National Institute of Standards and Technology