2022
DOI: 10.1038/s41467-022-32069-7
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Thermal control of the topological edge flow in nonlinear photonic lattices

Abstract: The chaotic evolution resulting from the interplay between topology and nonlinearity in photonic systems generally forbids the sustainability of optical currents. Here, we systematically explore the nonlinear evolution dynamics in topological photonic lattices within the framework of optical thermodynamics. By considering an archetypical two-dimensional Haldane photonic lattice, we discover several prethermal states beyond the topological phase transition point and a stable global equilibrium response, associa… Show more

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Cited by 8 publications
(1 citation statement)
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“…[ 38 ] Nevertheless, the complete photonic phase diagram characterizing this transition remains unclear, and this limits the possibility of designing various topological transport properties. [ 4,39–42 ] It is noteworthy that although both are topologically protected, the valley topological effect intrinsically manifests as valley‐locked interface states, while the Chern topological effect always manifests as unidirectional chiral edge states. The former can be characterized by nonzero quantized local valley‐Chern numbers for K (K′) valleys, i.e., CnormalKfalse(Kfalse)0${\rm C}_{\rm K(K^{\prime })}\ne 0$, whereas Chern numbers of complete bands are always zero, i.e., C = 0.…”
Section: Introductionmentioning
confidence: 99%
“…[ 38 ] Nevertheless, the complete photonic phase diagram characterizing this transition remains unclear, and this limits the possibility of designing various topological transport properties. [ 4,39–42 ] It is noteworthy that although both are topologically protected, the valley topological effect intrinsically manifests as valley‐locked interface states, while the Chern topological effect always manifests as unidirectional chiral edge states. The former can be characterized by nonzero quantized local valley‐Chern numbers for K (K′) valleys, i.e., CnormalKfalse(Kfalse)0${\rm C}_{\rm K(K^{\prime })}\ne 0$, whereas Chern numbers of complete bands are always zero, i.e., C = 0.…”
Section: Introductionmentioning
confidence: 99%