摘要

We present improved measurements of the static polarizability of the 8s(2)S(1/2) state of atomic cesium. Measured separately on two hyperfine components of the 6s(2)S(1/2) -> 8s(2)S(1/2) transition, we determine an average polarizability of alpha(8s) = 9.490 +/- 0.012 MHz (kV/cm)(-2), and a difference of only Delta alpha(8s) = 0.014 +/- 0.016 MHz (kV/cm)(-2). alpha(8s) is consistent with, but of higher precision (<0.15%) than, the previous measurement and theory. The difference Delta alpha(8s) is smaller than our previous determination, and within 1 sigma of zero. Our new technique is insensitive to the frequency calibration of the laser.

  • 出版日期2011-6-20