Electron-positron pair production in a bifrequent oscillating electric field

Abstract

Production of electron-positron pairs from the quantum vacuum polarized by the superposition of a strong and a perturbative oscillating electric-field mode is studied. Our outcomes rely on a nonequilibrium quantum field theoretical approach, described by the quantum kinetic Boltzmann-Vlasov equation. By superimposing the perturbative mode, the characteristic resonant effects and Rabi-like frequencies in the single-particle distribution function are modified, as compared to the predictions resulting from the case driven by a strong oscillating field mode only. This is demonstrated in the momentum spectra of the produced pairs. Moreover, the dependence of the total number of pairs on the intensity parameter of each mode is discussed and a strong enhancement found for large values of the relative Keldysh parameter.

13 pages, 8 figures

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• Strong-Field Breit-Wheeler Pair Production in Two Consecutive Laser Pulses with Variable Time Delay
• Electron-positron pair production in oscillating electric fields with double-pulse structure
• Magnetic Field Effect on Charged Scalar Pair Creation at Finite Temperature
• Electron-positron pair creation in the superposition of two oscillating electric field pulses with largely different frequency, duration and relative positioning
• Quantum tunnelling from vacuum in multidimensions
• Multiphoton absorption and Rabi oscillations in armchair graphene nanoribbons