Breather Wave Molecules.
| Autor: | Xu G; Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), UMR 6303 CNRS-Université Bourgogne Franche-Comté, 21078 Dijon, France., Gelash A; Novosibirsk State University, Novosibirsk 630090, Russia.; Institute of Thermophysics, SB RAS, Novosibirsk 630090, Russia., Chabchoub A; Centre for Wind, Waves and Water, School of Civil Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia., Zakharov V; Landau Institute for Theoretical Physics RAS, Chernogolovka 142432, Russia.; University of Arizona, Tucson, Arizona 857201, USA., Kibler B; Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), UMR 6303 CNRS-Université Bourgogne Franche-Comté, 21078 Dijon, France. |
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| Jazyk: | angličtina |
| Zdroj: | Physical review letters [Phys Rev Lett] 2019 Mar 01; Vol. 122 (8), pp. 084101. |
| DOI: | 10.1103/PhysRevLett.122.084101 |
| Abstrakt: | We present both a theoretical description and experimental observation of the nonlinear mutual interactions between a pair of copropagative breathers in the framework of the focusing one-dimensional nonlinear Schrödinger equation. As a general case, we show that the resulting bound state of breathers exhibits moleculelike behavior with quasiperiodic oscillatory dynamics (i.e., internal coherent interactions and pulsations), while for commensurate conditions the molecule oscillations become exactly periodic. Our theoretical model is confirmed by an experimental observation of shaped moleculelike breather light waves propagating in a nearly conservative optical fiber system. Our work sheds new light on the existence of localized wave structures and recurrence dynamics beyond the multisoliton complexes. |
| Databáze: | MEDLINE |
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