This man is the first namesake of a theorem whose proof uses the fact that momentum and the vector potential classically commute.
This man is the first namesake of a theorem whose proof uses the fact that momentum and the vector potential classically commute. That theorem, which forbids a nonzero thermal average for the magnetization in a classical system, is also named for van Leeuwen. One quantity named for him multiplies the Lande g factor and the total angular momentum over h-bar to give the negative total magnetic moment of an electron. Another quantity named for him equals "h-bar divided by (electron mass times c times alpha)" and thus exceeds the Compton wavelength by a factor of alpha. That length scale appears in a physical model named for this man that was the first to reproduce the Paschen and Lyman series. Electrons have discrete, stable circular orbits in the atomic model named, for 10 points, for what Danish physicist?
This man is the first namesake of a theorem whose proof uses the fact that momentum and the vector potential classically commute.
Niels (Henrik David) Bohr