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

Augustin, Sven; Müller, Carsten

doi:10.1088/1742-6596/497/1/012020

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

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Augustin, Sven
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;
Institut für Theoretische Physik I, Heinrich-Heine-Universität, 40225 Düsseldorf, Germany;

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Müller, Carsten
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

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http://iopscience.iop.org/1742-6596/497/1/012020
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Citation

Augustin, S., & Müller, C. (2014). Nonlinear Bethe-Heitler Pair Creation in an Intense Two-Mode Laser Field. Journal of Physics: Conference Series, 497: 012020. doi:10.1088/1742-6596/497/1/012020.

Cite as: https://hdl.handle.net/11858/00-001M-0000-001A-02C5-9

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.