Information
Hyperfine
Reference
- S. S. Hodgman, R. G. Dall, L. J. Byron, K. G. H. Baldwin, S. J. Buckman, and A. G. Truscott Phys. Rev. Lett. 103, 053002 – Published 30 July 2009
- Phys. Rev. Lett. 100, 023001 – Published 15 January 2008, Experimental Determination of the Helium \(2^3P_1–1^1S_0\) Transition Rate
- Wikipedia: Zitterbewegung
- Wikipedia: Welton
- Wikipedia: Weisskopf
- Demtröder, W. Atoms, Molecules and Photons: An Introduction to Atomic-, Molecular- and Quantum Physics. (Springer Berlin Heidelberg, 2018)
- wikipedia: Fine structure