p-Wave cold collisions in an optical lattice clock

Details p-Wave cold collisions in an optical lattice clock p-Wave cold collisions in an optical lattice clock

2011-05-10

arxiv.org/abs/1105.2014v2

Phys. Rev. Lett. 107, 103902 (2011)

Physics

Atomic Physics

9 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.107.103902

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.

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