%0 Journal Article %T Trajectory construction of Dirac evolution %A Peter Holland %J - %D 2020 %R 10.1098/rspa.2019.0682 %X We extend our programme of representing the quantum state through exact stand-alone trajectory models to the Dirac equation. We show that the free Dirac equation in the angular coordinate represent.. %U https://royalsocietypublishing.org/doi/10.1098/rspa.2019.0682