2004/09/08 by E. Comay
Physics and Astronomy · #quant-ph
published as Apeiron, 12, No. 1, 26 (2005) · 13 pages, 0 figures
arxiv created 2004/09/08 · arxiv updated 2009/12/01
The Dirac equation is compared with the Klein-Gordon one. Unlike the Dirac case, it is proved that the Klein-Gordon equation has problems with the Hamiltonian operator of the Schroedinger picture. A special discussion of the Pauli-Weisskopf article and that of Feshbach-Villars proves that their theories of a charged Klein-Gordon particle lack a self consistent expression for this Hamiltonian. Related difficulties are pointed out.