In modern quantum physics, the non-dimensional constant, alpha, shows up so often it is considered to be a fundamental physical constant in its own right. Its official definition, however, is a rather cryptic composite of other constants: The definition of alpha can be simplified, however, by considering the classical electron radius; the hypothetical distance between two quantum charges which would result in a potential energy of m Where lambda-C is the Compton wavelength of the electron. This, more civilized, definition will be used in this web site. |