Magnetic blackbody shift of hyperfine transitions for atomic clocks

Details Magnetic blackbody shift of hyperfine transitions for atomic clocks Magnetic blackbody shift of hyperfine transitions for atomic clocks

2009-10-12

arxiv.org/abs/0910.2064v1

Phys. Rev. A 80, 064101 (2009)

Physics

Atomic Physics

Scientific paper

10.1103/PhysRevA.80.064101

We derive an expression for the magnetic blackbody shift of hyperfine transitions such as the cesium primary reference transition which defines the second. The shift is found to be a complicated function of temperature, and has a T^2 dependence only in the high-temperature limit. We also calculate the shift of ground-state p_1/2 hyperfine transitions which have been proposed as new atomic clock transitions. In this case interaction with the p_3/2 fine-structure multiplet may be the dominant effect.

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