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arXiv · 1601.07083

Ring dark and anti-dark solitons in nonlocal media

Theodoros P. Horikis·Dimitrios J. Frantzeskakis
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Abstract

Ring dark and anti-dark solitons in nonlocal media are found. These structures have, respectively, the form of annular dips or humps on top of a stable continuous-wave background, and exist in a weak or strong nonlocality regime, defined by the sign of a characteristic parameter. It is demonstrated analytically that these solitons satisfy an effective cylindrical Kadomtsev-Petviashvilli (aka Johnson's) equation and, as such, can be written explicitly in closed form. Numerical simulations show that they propagate undistorted and undergo quasi-elastic collisions, attesting to their stability properties.

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Theodoros P. Horikis, Dimitrios J. Frantzeskakis. 2016-01-26. Ring dark and anti-dark solitons in nonlocal media. https://doi.org/10.1364/ol.41.000583

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