The “Sommerfeld Puzzle” revisited and resolved
- Cite this article as:
- Biedenharn, L.C. Found Phys (1983) 13: 13. doi:10.1007/BF01889408
The exact agreement between the Sommerfeld and Dirac results for the energy levels of the relativistic hydrogen atom (the “Sommerfeld Puzzle”) is analyzed and explained.