Phase-space analysis of the Schwinger effect in inhomogeneous electromagnetic fields
arXiv:1708.08920 · doi:10.1140/epjp/i2018-12062-6
Abstract
Schwinger pair production in spatially and temporally inhomogeneous electric and magnetic fields is studied. The focus is on the particle phase-space distribution within a high-intensity few-cycle pulse. Accurate numerical solutions of a quantum kinetic theory (DHW formalism) are presented in momentum space and, with the aid of coarse-graining techniques, in a mixed spatial-momentum representation. Additionally, signatures of the carrier-envelope phase as well as spin-field interactions are discussed on the basis of a trajectory-based model taking into account instantaneous pair production and relativistic single-particle dynamics. Although our simple semi-classical single-particle model cannot describe every aspect of the particle production process (quantum interferences), essential features such as spin-field interactions are captured.
15 pages, 9 figures (21 plots); v2: Reworked section IV, improved results and figures, fixed typos; v3: improved section 5.2, changed layout, fixed typos
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- Pair production in temporally and spatially oscillating fields
- Towards Schwinger production of magnetic monopoles in heavy-ion collisions
- Effects of finite spatial extent on Schwinger pair production
- Discrete worldline instantons
- Schwinger pair production of magnetic monopoles: momentum distribution for heavy-ion collisions
- Momentum spirals in multiphoton pair production revisited
- Schwinger pair production in inhomogeneous electric fields with symmetrical frequency chirp
- Photon emission in strong fields beyond the locally-constant field approximation
- Chirp effects on pair production in oscillating electric fields with spatial inhomogeneity
- Perturbative methods for assisted nonperturbative pair production
- Enhancement of pair creation due to locality in bound-continuum interactions
- Vortex Structures and Momentum Sharing in Dynamic Sauter-Schwinger Process
- Pair production in inhomogeneous electric fields with phase modulation