Probability current versus charge current of a relativistic particle
B. Rosenstein, Lawrence Paul Horwitz
The probability density of detecting a relativistic particle has been found by Newton and Wigner (1949) for a point in space. This probability density must, however, be the zero component of the same vector field. This (unique) vector field-the probability current-is constructed and discussed.
Journal of Physics A Mathematical and General•Aug 1, 1985•28 citations