作者: E. Simon , P. Laurent , A. Clairon
关键词: Electric field 、 Atomic fountain 、 Physics 、 Atomic physics 、 Stark effect 、 Ab initio 、 Hyperfine structure 、 Parity (physics) 、 Black-body radiation 、 Frequency 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.