Momentum correlations of scattered particles in quantum field theory: one-loop entanglement generation

Abstract

We compute the entanglement entropy variation between initial (separable or entangled in the momenta) and final states $\Delta S_E$ 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 $\Delta S_E$ changes as we vary the energy of incoming particles and the coupling strength in a non-trivial way.

8 pages, 8 figures

References in corpus (12)

• Harvesting correlations from the quantum vacuum
• Entanglement in an expanding spacetime
• Harvesting Entanglement from the Black Hole Vacuum
• Entanglement in curved spacetimes and cosmology
• Maximal Entanglement in High Energy Physics
• Entanglement Entropy of Scattering Particles
• Infrared quantum information
• Variation of Entanglement Entropy in Scattering Process
• Variation of entanglement entropy and mutual information in fermion-fermion scattering
• EPR = ER and Scattering Amplitude as Entanglement Entropy Change
• Entanglement of self interacting scalar fields in an expanding spacetime
• On discontinuity of information characteristics of quantum systems and channels

Cited by in corpus (6)

• Entanglement in flavored scalar scattering
• On Entropy Growth in Perturbative Scattering
• Entanglement and scattering in quantum electrodynamics: S-matrix information from an entangled spectator particle
• Entanglement entropy and monotones in scattering process
• Entanglement features in scattering mediated by heavy particles
• Qubit entanglement from forward scattering