Consideration on Non-Orthogonality Catastrophe in the Heitler-London Theory. I
Yukio Mizuno, Takeo Izuyama · Progress of Theoretical Physics · 1959
We here prove generally and rigorously that the non-orthogonality catastrophe does never arise in the Heitler-London theory. Our treatment may be regarded as a mathematical justification of Van-Vleck's objection against Inglis' criticism on the Heitler-London theory.