Multi-pair states in electron-positron pair creation
arXiv:1511.07709 · doi:10.1016/j.physletb.2016.07.037
Abstract
Ultra strong electromagnetic fields can lead to spontaneous creation of single or multiple electron-positron pairs. A quantum field theoretical treatment of the pair creation process combined with numerical methods provides a description of the fermionic quantum field state, from which all observables of the multiple electron-positron pairs can be inferred. This allows to study the complex multi-particle dynamics of electron-positron pair creation in-depth, including multi-pair statistics as well as momentum distributions and spin. To illustrate the potential benefit of this approach, it is applied to the intermediate regime of pair creation between nonperturbative Schwinger pair creation and perturbative multiphoton pair creation where the creation of multi-pair states becomes nonnegligible but cascades do not yet set in. Furthermore, it is demonstrated how spin and helicity of the created electrons and positrons are affected by the polarization of the counterpropagating laser fields, which induce the creation of electron-positron pairs.
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Cited by in corpus (8)
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- Effects of finite spatial extent on Schwinger pair production
- Strong-Field Breit-Wheeler Pair Production in Two Consecutive Laser Pulses with Variable Time Delay
- Pairwise mode entanglement in Schwinger production of particle-antiparticle pairs in an electric field
- Time- and space-resolved selective multi-pair creation
- Response of the QED(2) Vacuum to a Quench: Long-term Oscillations of the Electric Field and the Pair Creation Rate
- Beam focus and longitudinal polarization influence on spin dynamics in the Kapitza-Dirac effect
- State of a particle pair produced by the Schwinger effect is not necessarily a maximally entangled Bell state