Non-linear optical processes in cavity light-matter systems
Markus Lysne,
Philipp Werner
Abstract:We study non-linear optical effects in electron systems with and without inversion symmetry in a Fabry-Perot cavity. General photon up-and down-conversion processes are modeled by the coupling of a noninteracting lattice model to two modes of the quantized light field. Effective descriptions retaining the most relevant states are devised via downfolding and a generalized Householder transformation. These models are used to relate the transition amplitudes for even order photon-conversion processes to the shift… Show more
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