Measurement of the Stark shift of the Cs hyperfine splitting in an atomic fountain

作者: E. Simon , P. Laurent , A. Clairon

DOI: 10.1103/PHYSREVA.57.436

关键词: Electric fieldAtomic fountainPhysicsAtomic physicsStark effectAb initioHyperfine structureParity (physics)Black-body radiationFrequency standard

摘要: We have used an atomic fountain frequency standard to perform a new measurement of the shift induced by static electric field $E$ on clock transition cesium $6{}^{2}{S}_{1/2}$ hyperfine splitting. The result in units ${\mathrm{H}\mathrm{z}/(\mathrm{V}/\mathrm{m})}^{2}$ is $\ensuremath{\delta}{\ensuremath{\nu}}_{0}=\ensuremath{-}2.271(4)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}10}{E}^{2}.$ accuracy this represents tenfold improvement over previous values. This importance for testing ab initio theoretical calculations structure as well semiempirical models parity violation experiments. It will also allow better evaluation blackbody radiation standards.

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