Nonlinear Bethe-Heitler Pair Creation in an Intense Two-Mode Laser Field

Abstract

We investigate electron-positron pair creation in the interaction of a nuclear Coulomb field and a highly intense two-mode laser field. For bichromatic laser fields, we examine the differences arising for commensurable and incommensurable frequencies in a continuous variation of the laser frequency ratio and the quantum interference effects, which may occur in the commensurable case. We show that the interference manifests in the angular distributions and the total pair-production rates of the created particles. Additionally, by varying the amplitudes of the two modes we study pair creation in a monochromatic laser wave of arbitrarily elliptical polarization.

12 pages, 4 figures, LPHYS'13 Conference Proceedings

References in corpus (6)

• Interference Effects in Schwinger Vacuum Pair Production for Time-Dependent Laser Pulses
• Polarization operator approach to electron-positron pair production in combined laser and Coulomb fields
• Resonantly enhanced pair production in a simple diatomic model
• Electron-positron pair creation by Coulomb and laser fields in the tunneling regime
• Interference Effects in Bethe-Heitler Pair Creation in a Bichromatic Laser Field
• Few-Photon Electron-Positron Pair Creation by Relativistic Muon Impact on Intense Laser Beams

Cited by in corpus (5)

• Pair production in differently polarized electric fields with frequency chirps
• Nonperturbative Bethe-Heitler pair creation in combined high- and low-frequency laser fields
• Two-color phase-of-the-phase spectroscopy applied to nonperturbative electron-positron pair production in strong oscillating electric fields
• Response of the QED(2) Vacuum to a Quench: Long-term Oscillations of the Electric Field and the Pair Creation Rate
• The generation of narrow ultrarelativistic beams of positrons (electrons) in the process of resonant photogeneration of pairs on nuclei in a strong electromagnetic field