Improved measurement of the hydrogen 1S-2S transition frequency.
Parthey CG, Matveev A, Alnis J, Bernhardt B, Beyer A, Holzwarth R, Maistrou A, Pohl R, Predehl K, Udem T, Wilken T, Kolachevsky N, Abgrall M, Rovera D, Salomon C, Laurent P, Hänsch TW.
Parthey CG, et al. Among authors: bernhardt b.
Phys Rev Lett. 2011 Nov 11;107(20):203001. doi: 10.1103/PhysRevLett.107.203001. Epub 2011 Nov 11.
Phys Rev Lett. 2011.
PMID: 22181729