arXiv:1607.01715
Momentum correlations of scattered particles in quantum field theory: one-loop entanglement generation
Ricardo Faleiro, R. Pavao, Alexander, Helder, Brigitte Hiller, Alex H. Blin, Marcos Sampaio
Abstract
We compute the entanglement entropy variation between initial (separable or entangled in the momenta) and final states $ΔS_E$ in an elastic scattering of a bipartite system composed by two interacting scalar particles. We perform a quantum field theoretical calculation to one loop order and verify that $ΔS_E $ changes as we vary the energy of incoming particles and the coupling strength in a non-trivial way.