Asymmetry in momentum space: restoring $\mathcal{C}\mathcal{P}\mathcal{T}$ invariance of $\kappa$-field theory

Tadeusz Adach, Andrea Bevilacqua, Jerzy Kowalski-Glikman +1

The positive and negative energy modes of a field theory in $\kappa$-Minkowski/$\kappa$-Poincaré noncommutative spacetime have very different symmetry properties. This can be understood geom…