Regularized Entanglement Entropy of Electron-Positron Scattering with a Witness Photon

Shanmuka Shivashankara, Grace Gogliettino

Regularized quantum information metrics are calculated for the scattering process $e^{-}{e}^{+}\to \gamma ,Z\to {\mu }^{-}{\mu }^{+}$ that has a witness photon entangled with the initial el…