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arXiv · 1712.08613

Sauter-Schwinger pair creation dynamically assisted by a plane wave

Greger Torgrimsson·Christian Schneider·Ralf Schützhold
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Abstract

We study electron-positron pair creation by a strong and constant electric field superimposed with a weaker transversal plane wave which is incident perpendicularly (or under some angle). Comparing the fully non-perturbative approach based on the world-line instanton method with a perturbative expansion into powers of the strength of the weaker plane wave, we find good agreement - provided that the latter is carried out to sufficiently high orders. As usual for the dynamically assisted Sauter-Schwinger effect, the additional plane wave induces an exponential enhancement of the pair-creation probability if the combined Keldysh parameter exceeds a certain threshold.

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Greger Torgrimsson, Christian Schneider, Ralf Schützhold. 2017-12-22. Sauter-Schwinger pair creation dynamically assisted by a plane wave. https://doi.org/10.1103/physrevd.97.096004

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