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Floquet Weyl Semimetal Induced by Off-Resonant Light

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arxiv 1308.4266 v2 pith:GZR7DDIT submitted 2013-08-20 cond-mat.mes-hall cond-mat.mtrl-sci

Floquet Weyl Semimetal Induced by Off-Resonant Light

classification cond-mat.mes-hall cond-mat.mtrl-sci
keywords lightfloquetoff-resonantsemimetaltopologicalweylinducedinsulators
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We propose that a Floquet Weyl semimetal state can be induced in three-dimensional topological insulators, either nonmagnetic or magnetic, by the application of off-resonant light. The virtual photon processes play a critical role in renormalizing the Dirac mass and so resulting in a topological semimetal with vanishing gap at Weyl points. The present mechanism via off-resonant light is quite different from that via on-resonant light, the latter being recently suggested to give rise to a Floquet topological state in ordinary band insulators.

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  1. Nonequilibrium steady states in driven holographic Weyl semi-metals

    hep-th 2026-02 conditional novelty 6.0

    A driven holographic Weyl semimetal supports a stable nonequilibrium steady state, becomes superharmonic and then chaotic at stronger driving, and exhibits strong-coupling chiral pumping in a magnetic field.