Variation of entanglement entropy and mutual information in fermion-fermion scattering

Jinbo Fan, Yanbin Deng, Yong-Chang Huang

We study the behavior of entanglement between different degrees of freedom of scattering fermions, based on an exemplary QED scattering process $e^{+}{e}^{-}⟶{\mu }^{+}{\mu }^{-}$. The v…