Attraction of nonlocal dark optical solitons.
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We study the formation and interaction of spatial dark optical solitons in materials with a nonlocal nonlinear response. We show that unlike in local materials, where dark solitons typically repel, the nonlocal nonlinearity leads to a long-range attraction and formation of stable bound states of dark solitons.
author list (cited authors)
Nikolov, N. I., Neshev, D., Królikowski, W., Bang, O., Rasmussen, J. J., & Christiansen, P. L.