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- W2941016710 abstract "We theoretically explore the dynamics of spatial solitons in nonlinear/interacting bosonic topological insulators. We employ a time-reversal broken Lieb-lattice analog of a Chern insulator and find that in the presence of a saturable nonlinearity, solitons bifurcate from a band of non-zero Chern number into the topological band gap with vortex-like structure on a sublattice. We numerically demonstrate the existence stable vortex solitons for a range of parameters and that the lattice soliton dynamics are subject to the velocity associated with large Berry curvature at the topological Lieb band edge. The features of the vortex solitons are well described by a new underlying continuum Dirac model. We further show a new kind of interaction: when these topological solitons `bounce' off the edge of a finite structure, they create chiral edge states, and this give rise to an anomalous reflection of the soliton from the boundary." @default.
- W2941016710 created "2019-05-03" @default.
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- W2941016710 date "2019-04-21" @default.
- W2941016710 modified "2023-09-27" @default.
- W2941016710 title "Bulk soliton dynamics in bosonic topological insulators" @default.
- W2941016710 cites W1501956976 @default.
- W2941016710 hasPublicationYear "2019" @default.
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