Classical electron radius
(重定向自Compton Radius)
The classical electron radius, also known as the Lorentz radius or the Thomson scattering length, is based on a classical (i.e. non-quantum) relativistic model of the electron. According to modern understanding, the electron is a point particle with a point charge and no spatial extent. Attempts to model the electron as non-point particle are considered ill-conceived and counter-pedagogic. However, the classical electron radius is calculated as