State of a particle pair produced by the Schwinger effect is not necessarily a maximally entangled Bell state
arXiv:1908.01005 · doi:10.1103/PhysRevD.100.045015
Abstract
We analyze the spins of a Schwinger particle pair in a spatially uniform but time dependent electric field. The particle pair's spins are in the maximally entangled Bell state only if the particles' momenta are parallel to the electric field. However if transverse momentum is present, the spins are not in the maximally entangled Bell state. The reason is that the pair is created by the external field, which also carries angular momentum, and the particle pair can take away some of this external angular momentum.
6 pages, 1 figure, and accepted by PRD
References in corpus (10)
- Prolific pair production with high-power lasers
- Entanglement of Dirac fields in non-inertial frames
- Schwinger pair production in space- and time-dependent electric fields: Relating the Wigner formalism to quantum kinetic theory
- Continuous variable entanglement sharing in non-inertial frames
- Effective Action of QED in Electric Field Backgrounds
- Entanglement Generation by Electric Field Background
- Thermally-induced vacuum instability in a single plane wave
- Pairwise mode entanglement in Schwinger production of particle-antiparticle pairs in an electric field
- Time evolution of the QED vacuum in a uniform electric Field: Complete analytic solution by spinorial decomposition
- Time- and space-resolved selective multi-pair creation
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