Spatially varying light generates effective pseudo-magnetic fields in 3D Weyl semimetals via a high-frequency Floquet expansion that maps light profiles to an axial gauge potential A5(r).
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Generalizes dynamical 3-winding-number to multi-band Chern insulators, proves equality to Chern number difference, and derives expression via phase-band gapless fermions.
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Light-induced pseudo-magnetic fields in three-dimensional topological semimetals
Spatially varying light generates effective pseudo-magnetic fields in 3D Weyl semimetals via a high-frequency Floquet expansion that maps light profiles to an axial gauge potential A5(r).
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Loop unitary and phase band topological invariant in generic multi-band Chern insulators
Generalizes dynamical 3-winding-number to multi-band Chern insulators, proves equality to Chern number difference, and derives expression via phase-band gapless fermions.