Dimensionality-driven photoproduction of massive Dirac pairs near threshold in gapped graphene monolayers

Abstract

Generation of quasi-particle--hole pairs in gapped graphene monolayers in the combined field of two counterpropagating light waves is studied. The process represents an analogue of electron-positron pair production from the QED vacuum by the Breit-Wheeler effect. We show, however, that the two-dimensional structure of graphene causes some striking differences between both scenarios. In particular, contrary to the QED case, it allows for non-zero pair production rates at the energy threshold when the Breit-Wheeler reaction proceeds nonlinearly with absorption of three photons.

arXiv comment6 pages, 2 figures

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Cited by in corpus (16)

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• Quantum field theoretical description of the Casimir effect between two real graphene sheets and thermodynamics
• Quantum field theoretical framework for the electromagnetic response of graphene and dispersion relations with implications to the Casimir effect
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