Study of pair production in inhomogeneous two-color electric fields using the computational quantum field theory
arXiv:2106.04236 · doi:10.1103/PhysRevD.103.116018
Abstract
We first demonstrate theoretically that the computational quantum field theory is equivalent to the quantum kinetic theory for pair creation in a spatially homogeneous and time-dependent electric field, then verify numerically their equivalence for pair creation in one-dimensional time-dependent electric fields, and finally investigate detailedly the effects of the field frequency, spatial width, pulse duration, and relative phase on dynamically assisted Schwinger pair production in an inhomogeneous two-color electric field. It is found that the enhancement effect of pair creation is very sensitive to the field frequency and generally very obvious for a shorter field width, a longer pulse duration, and a relative phase of maximizing the field strength. These results can provide a significant reference for the optimal control theory of pair creation which aims to maximize the created pair yield within a given scope of field parameters.
16 pages, 7 figures
References in corpus (17)
- Prolific pair production with high-power lasers
- Dynamically assisted Schwinger mechanism
- Worldline Instantons II: The Fluctuation Prefactor
- Schwinger pair production in space- and time-dependent electric fields: Relating the Wigner formalism to quantum kinetic theory
- The Stokes Phenomenon and Schwinger Vacuum Pair Production in Time-Dependent Laser Pulses
- Interference Effects in Schwinger Vacuum Pair Production for Time-Dependent Laser Pulses
- Barrier control in tunneling e^+ e^- photoproduction
- Improved Approximations for Fermion Pair Production in Inhomogeneous Electric Fields
- Super-Adiabatic Particle Number in Schwinger and de Sitter Particle Production
- Dynamical Schwinger process in a bifrequent electric field of finite duration: survey on amplification
- Momentum vortices on pairs production by two counter-rotating fields
- Effects of finite spatial extent on Schwinger pair production
- Semiclassical pair production rate for rotating electric fields
- Doubly assisted Sauter-Schwinger effect
- Pair production from residues of complex worldline instantons
- Thermally versus dynamically assisted Schwinger pair production
- Equivalence between the phase-integral and worldline-instanton methods