Pseudogauges and relativistic spin hydrodynamics for interacting Dirac and Proca fields
Nora Weickgenannt, David Wagner, Enrico Speranza
Abstract
We present the explicit expressions of different pseudogauge transformations for Dirac and Proca fields considering a general interaction term. The particular case of the interaction of Dirac and Proca fields with a background electromagnetic field is also studied. Starting from the quantum kinetic theory with collisions derived from the Wigner-function formalism for massive spin-$1/2$ and spin-1 particles, we establish a connection between different pseudogauges and relativistic spin hydrodynamics. The physical implications of the various decompositions of orbital and spin angular momentum are discussed.
Topics & Concepts
PhysicsDirac equationFormalism (music)Spin (aerodynamics)Electromagnetic fieldDirac (video compression format)Angular momentumQuantum electrodynamicsKinetic energyClassical mechanicsGauge theoryQuantum mechanicsArtMusicalVisual artsNeutrinoThermodynamicsBlack Holes and Theoretical PhysicsCosmology and Gravitation TheoriesHigh-Energy Particle Collisions Research