Soliton "molecules": robust clusters of light bullets
Lucian-Cornel Crasovan, Yaroslav V. Kartashov, Dumitru Mihalache, Lluis Torner, Yuri S. Kivshar, Victor M. Perez-Garcia
Abstract
We show how to generate robust self-sustained clusters of soliton bullets-spatiotemporal (optical or matter-wave) solitons. The clusters carry an orbital angular momentum being supported by competing nonlinearities. The "atoms" forming the "molecule" are fully three-dimensional solitons linked via a staircase-like macroscopic phase. Recent progress in generating atomic-molecular coherent mixing in Bose-Einstein condensates might open potential scenarios for the experimental generation of these soliton molecules with matter-waves.
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