Soliton "molecules": robust clusters of spatiotemporal optical solitons.
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 staircaselike macroscopic phase. Recent progress in generating atomic-molecular coherent mixing in the Bose-Einstein condensates might open potential scenarios for the experimental generation of these soliton molecules with matter waves.
Crasovan
Lucian-Cornel
LC
Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, ES 08034 Barcelona, Spain.
Kartashov
Yaroslav V
YV
Mihalache
Dumitru
D
Torner
Lluis
L
Kivshar
Yuri S
YS
Pérez-García
Víctor M
VM