Abstract
We study the Schwinger process in a uniform non-Abelian electric field using a dynamical approach in which we evolve an initial quantum state for gluonic excitations. We evaluate the spectral energy density and number density in the excitations as functions of time. The total energy density has an ultraviolet divergence which we argue gets tamed due to asymptotic freedom, leading to g4E4t4 growth, where g is the coupling and E the electric field strength. We also find an infrared divergence in the number density of excitations whose resolution requires an effect such as confinement.
Original language | English (US) |
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Article number | 045009 |
Journal | Physical Review D |
Volume | 104 |
Issue number | 4 |
DOIs | |
State | Published - Aug 15 2021 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics