p-Wave cold collisions in an optical lattice clock
Atomic Physics
2011-12-14 v2 Quantum Physics
Abstract
We study ultracold collisions in fermionic ytterbium by precisely measuring the energy shifts they impart on the atom's internal clock states. Exploiting Fermi statistics, we uncover p-wave collisions, in both weakly and strongly interacting regimes. With the higher density afforded by two-dimensional lattice confinement, we demonstrate that strong interactions can lead to a novel suppression of this collision shift. In addition to reducing the systematic errors of lattice clocks, this work has application to quantum information and quantum simulation with alkaline-earth atoms.
Cite
@article{arxiv.1105.2014,
title = {p-Wave cold collisions in an optical lattice clock},
author = {N. D. Lemke and J. von Stecher and J. A. Sherman and A. M. Rey and C. W. Oates and A. D. Ludlow},
journal= {arXiv preprint arXiv:1105.2014},
year = {2011}
}
Comments
9 pages, 4 figures