期刊
PHYSICAL REVIEW LETTERS
卷 122, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.084101
关键词
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资金
- French Investissements d'Avenir program (PIA2/ISITE-BFC) [ANR-15-IDEX-03]
- RFBR [16-31-60086 mol_a_dk]
- Russian Science Foundation [17-71-10128]
- Russian Science Foundation [17-71-10128] Funding Source: Russian Science Foundation
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 Schrodinger 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.
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