Radiation signal accompanying the Schwinger effect

Abstract

The properties of the forced oscillations of electron-positron plasma (EPP) generated from vacuum under the action of a short laser pulse are considered. Calculating the density of the conduction and polarization currents within the quantum kinetic approach, we demonstrate the presence of plasma oscillations at the frequency of the external field and its odd harmonics. It is expected that radiation generated by these plasma oscillations can be observed outside the interaction region, for example, outside the focal spot of two counterpropagating laser beams, and can serve as an indicator of the Schwinger mechanism of the EPP creation from vacuum.

arXiv comment7 pages, 4 figures

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Cited by in corpus (5)

• Advances in QED with intense background fields
• Stimulated vacuum emission and photon absorption in strong electromagnetic fields
• Analysis of the Third Harmonic of a Vacuum Response in a Subcritical Laser Field
• QFT approach to dressed particle processes in preheating and non-perturbative mechanism in kinematically-forbidden regime
• The physics of adiabatic particle number in the Schwinger effect