Comment on "Clock Shift in High Field Magnetic Resonance of Atomic Hydrogen"

Details Comment on "Clock Shift in High Field Magnetic Resonance of Atomic Hydrogen" Comment on "Clock Shift in High Field Magnetic Resonance of Atomic Hydrogen"

2010-02-08

arxiv.org/abs/1002.1534v1

Phys. Rev. Lett. 104, 099301 (2010)

Physics

Quantum Physics

1 page

Scientific paper

10.1103/PhysRevLett.104.099301

In this Comment, we reanalyze the experiments on the collision frequency shift of the b-c and a-d hyperfine transitions in three-dimensional atomic hydrogen in the presence of, respectively, a and b-state atoms. Accurate consideration of the symmetry of the spatial and spin part of the diatomic wavefunction yields the difference a_T-a_S=0.30(5) \AA between the triplet and singlet s-wave scattering lengths of hydrogen atoms. This corrects the factor-of two error of the commented work [Phys. Rev. Lett. 101, 263003 (2008)].

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