Pairwise mode entanglement in Schwinger production of particle-antiparticle pairs in an electric field

Abstract

Quantum entanglement is the characteristic quantum correlation. Here we use this concept to analyze the quantum entanglement generated by Schwinger production of particle-antiparticle pairs in an electric field, as well as the change of mode entanglement as a consequence of the electric field effect on an entangled pair of particles. The system is partitioned by using momentum modes. Various kinds of pairwise mode entanglement are calculated as functions of the electric field. Both constant and pulsed electric fields are considered. The use of entanglement exposes information beyond that in particle number distributions.

arXiv comment22 pages, submitted to PRD

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• Synchronize accelerated clock in a multipartite relativistic quantum system
• Fermionic entanglement in the presence of background electric and magnetic fields
• Spirals, vortices, and helicity entanglements in dynamical Sauter-Schwinger pair creation
• States of charged quantum fields and their statistical properties in the presence of critical potential steps