Question

Relativistic Von Neumann equation?

Answer 1

The Dirac equation is a cornerstone ofrelativistic quantum mechanics [1]. It was originally developed to describe spin 1/2 charged particles playing an essential role in the field of high energy physics [2–4]. ... The von Neumann equation [20] describing unitary evolution is recovered by ignoring thedissipator.

Answer 2

In physics, relativistic quantum mechanics ( RQM) is any Poincaré covariant ... In this article, the equations are written in familiar 3d vector calculus notation and use hats for operators ...