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Theory investigates cnoidal wave interactions in Dirac crystals, revealing dynamic band valley formation and energy gaps.
A theory of the interaction between a cnoidal electromagnetic wave and the electron subsystem of a Dirac crystal is constructed within the Floquet formalism. The Floquet spectrum of an electron in the high-frequency electric field of a cnoidal profile is calculated. The possibilities of dynamically induced band valleys and the formation of an energy gap at the Dirac point are investigated.
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Ivanov et al. (2026) studied this question.
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