title: Self-organization of topological defects due to applied constraints.
abstract: While topological defects are essential to our understanding of self-organizing periodic systems, little is known about how these systems respond when their defects are subjected to geometrical constraints. In an experiment on spatially modulated thermal convection patterns, we observe that applied geometrical constraints bind topological defects into robust self-localized structures that evolve through aggregation, annihilation, and self-replication. We demonstrate that this unexpected cooperative response to the modulation is a natural consequence of three generic elements: phase locking, symmetry breaking, and spatial resonance. Our work provides new insights into the interplay between order, chaos, and control in self-organizing systems.
authors.affiliation: Department of Physics, Cornell University, Ithaca, New York 14853, USA. jhm28@cornell.edu
authors.forename: Jonathan H
authors.initials: JH
authors.lastname: McCoy
authors.forename: Will
authors.initials: W
authors.lastname: Brunner
authors.forename: Werner
authors.initials: W
authors.lastname: Pesch
authors.forename: Eberhard
authors.initials: E
authors.lastname: Bodenschatz
mesh_terms: D008962:Models, Theoretical; D010507:Periodicity