3 years ago

Impact of electron-electron Coulomb interaction on the high harmonic generation process in graphene.

H. K. Avetissian, G. F. Mkrtchian

Generation of high harmonics in a monolayer graphene initiated by strong coherent radiation field, taking into account electron-electron Coulomb interaction is investigated. A microscopic theory describing the nonlinear optical response of graphene is developed. The Coulomb interaction of electrons is treated in the scope of dynamic Hartree-Fock approximation. The closed set of integrodifferential equations for the single-particle density matrix of a graphene quantum structure is solved numerically. The obtained solutions show the significance of many-body Coulomb interaction on the high harmonic generation process in graphene.

Publisher URL: http://arxiv.org/abs/1801.02943

DOI: arXiv:1801.02943v1

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