β Scribed by S.N.M. Ruijsenaars
No coin nor oath required. For personal study only.
We study the acausal behavior of free massive relativistic particles, as predicted by the Newton-Wigner position operator. The main result is an upper bound for the probability of superluminal propagation speeds. This bound implies the detection probability of acausal events is vanishingly small under present laboratory conditions.
π SIMILAR VOLUMES
## Abstract In 1949 Newton and Wigner have obtained a nonβcovariant coordinate **__q__** of the scalar particle on the basis of some postulates. It is shown that the ordinary coordinate **__x__** satisfies all physical and mathematical requirements underlying their postulates if the definition (3)
## Abstract Analytical approaches based on theories of relativity and photons are presented. The relativistic approach does not permit the speed of propagation to become superluminal. The classical photon theory is limited to the TEM mode monochromatic CW electromagnetic waves only. The Maxwellian