Physics

Musical

Visual arts

Kinetic energy

Neutrino

Angular momentum

Gauge theory

Electromagnetic field

Quantum electrodynamics

Spin (aerodynamics)

Dirac (video compression format)

Quantum mechanics

Formalism (music)

Dirac equation

Classical mechanics

Thermodynamics

Physical review. D/Physical review. D.

We present the explicit expressions of different pseudo-gauge 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 pseudo-gauges and relativistic spin hydrodynamics. The physical implications of the various decompositions of orbital and spin angular momentum are discussed.

Pseudogauges and relativistic spin hydrodynamics for interacting Dirac and Proca fields