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Published on: December 15, 2021
Stabilization of vector soliton complexes in nonlocal nonlinear media
Zhiyong Xu1, Yaroslav V Kartashov, Lluis Torner
1ICFO-Institut de Ciencies Fotoniques, and Universitat Politecnica de Catalunya, Mediterranean Technology Park, Castelldefels (Barcelona), Spain.
Summary
We discovered that nonlocality and vectorial coupling stabilize complex vector solitons in nonlinear media. This allows for stable multihumped soliton trains, overcoming instabilities seen in simpler scalar settings.
Area of Science:
- Nonlinear optics
- Soliton physics
- Complex systems
Background:
- Vector solitons are crucial in nonlinear optics.
- Multihumped solitons often suffer from instabilities in scalar settings.
- Nonlocal nonlinear media introduce unique wave propagation characteristics.
Purpose of the Study:
- To investigate the stabilization of vector soliton complexes in nonlocal Kerr-type nonlinear media.
- To explore the combined effects of nonlocality and vectorial coupling on multihumped solitons.
- To identify conditions for the existence of stable bound states of vector solitons.
Main Methods:
- Theoretical modeling of vector solitons in nonlocal nonlinear media.
- Analysis of the stability of multihumped vector soliton solutions.
- Numerical simulations to verify analytical predictions.
Main Results:
- The combination of nonlocality and vectorial coupling exhibits a significant stabilizing effect on multihumped solitons.
- Stable bound states of vector solitons with multiple field oscillations per component have been identified.
- Vector soliton trains with a large number of humps can be stabilized, unlike in scalar systems.
Conclusions:
- Nonlocal Kerr-type nonlinear media offer a pathway to stabilize complex vector soliton structures.
- Vectorial coupling and nonlocality are key parameters for controlling soliton stability.
- This work enables the creation of robust, complex optical structures for potential applications.
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