Breather Wave Molecules

Gang Xu, Andrey Gelash, Amin Chabchoub, Vladimir Zakharov, Bertrand Kibler

Research output: Contribution to journalArticlepeer-review

97 Scopus citations


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.

Original languageEnglish (US)
Article number084101
JournalPhysical review letters
Issue number8
StatePublished - Feb 27 2019

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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