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arXiv · 1008.5005

Lattice-induced non-adiabatic frequency shifts in optical lattice clocks

Kyle Beloy
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Abstract

We consider the frequency shift in optical lattice clocks which arises from the coupling of the electronic motion to the atomic motion within the lattice. For the simplest of 3-D lattice geometries this coupling is shown to only affect clocks based on blue-detuned lattices. We have estimated the size of this shift for the prospective strontium lattice clock operating at the 390 nm blue-detuned magic wavelength. The resulting fractional frequency shift is found to be on the order of $10^{-18}$ and is largely overshadowed by the electric quadrupole shift. For lattice clocks based on more complex geometries or other atomic systems, this shift could potentially be a limiting factor in clock accuracy.

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Kyle Beloy. 2010-08-30. Lattice-induced non-adiabatic frequency shifts in optical lattice clocks. https://doi.org/10.1103/physreva.82.031402

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