2023/07/22 by Tosiek, Jaromir, Campobasso, Luca
#81S30 #FOS: Physical sciences #Quantum Physics (quant-ph)
paper · doi:10.48550/arxiv.2307.12046
A quantum phase space version of the continuity equation for systems with internal degrees of freedom is derived. The 1 -- D Dirac equation is introduced and its phase space counterpart is found. The phase space representation of free motion and of scattering in a nonrelativistic and relativistic case for setups with internal degrees of freedom is discussed and illustrated. Properties of Wigner functions of unbound states are analysed.