Improved Measurement of the Hydrogen 1S - 2S Transition Frequency
Jul 15, 2011Citations per year
Abstract: (arXiv)
We have measured the 1S - 2S transition frequency in atomic hydrogen via two photon spectroscopy on a 5.8 K atomic beam. We obtain Hz for the hyperfine centroid. This is a fractional frequency uncertainty of improving the previous measure- ment by our own group [M. Fischer et al., Phys. Rev. Lett. 92, 230802 (2004)] by a factor of 3.3. The probe laser frequency was phase coherently linked to the mobile cesium fountain clock FOM via a frequency comb.Note:
- 5 pages, 4 figures
References(21)
Figures(6)
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