Collisional losses, decoherence, and frequency shifts in optical lattice clocks with bosons

Details Collisional losses, decoherence, and frequency shifts in optical lattice clocks with bosons Collisional losses, decoherence, and frequency shifts in optical lattice clocks with bosons

2009-04-16

arxiv.org/abs/0904.2515v2

Physics

Atomic Physics

4 pages, 3 figures

Scientific paper

We have quantified collisional losses, decoherence and the collision shift in a one-dimensional optical lattice clock with bosonic 88Sr. The lattice clock is referenced to the highly forbidden transition 1S0 - 3P0 at 698 nm, which becomes weakly allowed due to state mixing in a homogeneous magnetic field. We were able to quantify three decoherence coefficients, which are due to dephasing collisions, inelastic collisions between atoms in the upper and lower clock state, and atoms in the upper clock state only. Based on the measured coefficients, we determine the operation parameters at which a 1D-lattice clock with 88Sr shows no degradation due to collisions on the relative accuracy level of 10-16.

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