Interacting fermions in an expanding spacetime
arXiv:1811.00575 · doi:10.1103/PhysRevD.98.125009
Abstract
We evaluate the effect of quantum electrodynamics on the correlations between Dirac field modes corresponding electron-positron pairs of opposite momenta generated by expansion of an asymptotically flat Friedmann-Robertson-Walker (FRW) universe. The mutual information of out-going electron-positron pairs is evaluated to leading order in the coupling strength and compared with the free case. It is shown a decrease in the mutual information between the electron and positron. In addition, it is found that the change in the electron-positron mutual information depends on how the momentum is distributed between the positron and photon modes.
11 pages, 6 figures. To appear in Physical Review D
References in corpus (8)
- Entanglement in an expanding spacetime
- Entanglement in curved spacetimes and cosmology
- Gravitationally Induced Particle Production: Thermodynamics and Kinetic Theory
- Disentanglement of two harmonic oscillators in relativistic motion
- Entanglement of two qubits in a relativistic orbit
- Cosmology, Thermodynamics and Matter Creation
- Entanglement of self interacting scalar fields in an expanding spacetime
- Multi-partite analysis of average-subsystem entropies