Description
Particle pair production within strong-field quantum electrodynamics is the prime example of what happens when a quantum many-body system is pushed to its limits. It challenges our understanding of non-equilibrium physics and fundamental particle physics, as well as our conception of emergent phenomena and collective dynamics.
In this talk, we focus on extremely high-intensity, classical light driving non-perturbative as well as multiphoton pair production processes. Key physics discussion points include the characteristic signatures in the particle momentum spectra (i.e. the spin-state distribution of the emergent particle pairs). We also discuss recent developments in relativistic quantum transport theory (i.e. the Wigner formalism) that facilitated our discoveries.
References:
[1] James P. Edwards et al., arXiv:2502.14703 [hep-ph].
[2] Christian Kohlfürst, Phys. Rev. D 110, L111903 (2024).
[3] Matthias Diez et al., Phys. Lett. B 844, 138063 (2023).
