Tuning the hopping anisotropy in a 1D Kondo lattice drives transitions between featureless Kondo insulators, a valence-bond solid, and gapless spin liquids, with a spiral spin liquid as the critical point between two fragile Kondo insulators.
2(a) we show electron correlation lengthξ e as a function oft 1/t2, for different bond dimensionsD
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Valence-bonds, spin liquids and unconventional criticality in a 1D Kondo insulator
Tuning the hopping anisotropy in a 1D Kondo lattice drives transitions between featureless Kondo insulators, a valence-bond solid, and gapless spin liquids, with a spiral spin liquid as the critical point between two fragile Kondo insulators.