Dark solitons in purely quintic nonlinear lattices with defects

Xing Zhu, Milivoj R. Belić, Dumitru Mihalache, Jiawei Li and Liangwei Zeng

Chaos, Solitons & Fractals, 2025, vol. 200, issue P1

Abstract: We demonstrate that two types of dark soliton families can be sustained in purely quintic nonlinear lattices with defects, namely on-site and off-site solitons. These solitons are classified based on whether their centers are located at lattice defects (on-site) or away from them (off-site). We analyze dark solitons in nonlinear lattices, where the lattice and defects are imprinted on an intensity background. Notably, the stability domains of off-site dark solitons are significantly larger than those of on-site solitons. In this work, we study the off-site dark solitons interacting with both short and long defects. Additionally, we investigate solitons in lattices containing one or two defects, either short or long. The stability domains of both on-site and off-site dark solitons are determined by the linear stability analysis and verified by numerical simulations.

Keywords: Dark solitons; Quintic nonlinearity; Nonlinear lattices; Defective lattices (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960077925009968
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:200:y:2025:i:p1:s0960077925009968

DOI: 10.1016/j.chaos.2025.116983

Access Statistics for this article

Chaos, Solitons & Fractals is currently edited by Stefano Boccaletti and Stelios Bekiros

More articles in Chaos, Solitons & Fractals from Elsevier
Bibliographic data for series maintained by Thayer, Thomas R. ().