C. H. D. de Lima

High Energy Photon Polarimetry at Lepton Colliders: Quantum Information from Converted Photons

We study high-energy photons produced at a lepton collider that convert into an $e^+e^-$ pair in the detector, as a tool for measuring quantum information observables. We consider single- and double-conversion processes in $e^+e^- \to \gamma\gamma$ and $e^+e^- \to e^+e^-\gamma$. Single conversions enable an in situ ext...