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- W4328130850 abstract "We introduce a different class of thresholdless three-dimensional soliton states that form in higher-order topological insulators based on a two-dimensional Su-Schrieffer-Heeger array of coupled waveguides. The linear spectrum of such structures is characterized by the presence of a topological gap with corner states residing in them. We find that a focusing Kerr nonlinearity allows families of light bullets bifurcating from the linear corner states to exist as stable three-dimensional solitons, which inherit topological protection from their linear corner counterparts and, remarkably, survive even in the presence of considerable disorder. The light bullets exhibit a spatial localization degree that depends strongly on the array dimerization, and may feature large temporal widths in the topological gap near the bifurcation point, thus drastically reducing the otherwise strong instabilities caused by higher-order effects." @default.
- W4328130850 created "2023-03-22" @default.
- W4328130850 creator A5035637526 @default.
- W4328130850 creator A5054776632 @default.
- W4328130850 creator A5061576841 @default.
- W4328130850 date "2023-03-21" @default.
- W4328130850 modified "2023-10-15" @default.
- W4328130850 title "Light bullets in Su-Schrieffer-Heeger photonic topological insulators" @default.
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- W4328130850 doi "https://doi.org/10.1103/physreva.107.033514" @default.
- W4328130850 hasPublicationYear "2023" @default.
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