Strange attractors, nonlinear dynamics and abundant novel soliton solutions of the Akbota equation in Heisenberg ferromagnets

IF 5.3 1区 数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS
Mohammad Alqudah , Maalee AlMheidat , M.M. Alqarni , Emad E. Mahmoud , Shabir Ahmad
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引用次数: 0

Abstract

The prime objective of the present investigation is to classically unveil the dynamical properties of nonlinear Akbota equation, connected with Heisenberg ferromagnets. The Akbota equation serves as a fundamental model to study the nonlinear phenomena in magnetism, optics, and more generally in the differential geometry of curves and surfaces. We accomplish this by starting with creation of dynamical system (DS) associated to the proposed model. Then, the stimuli of bifurcations in the system are investigated using the planar DS theory. Next, we systematically study that the Akbota equation exhibits chaotic phenomena by adding a perturbation term to its subsequent dynamic setting. We also verify this investigation by displaying 2D and 3D phase portraits. The Lyapunov exponents (LEs) and bifurcations maps with respect to parameters are explored. Some more novel nonlinear dynamics such as return maps, power spectrum, recurrence plot, fractal dimension, and strange novel chaotic attractors are presented. The simulation results is carried out using the RK-4 method. For several soliton solutions, the improved modified extended Tanh-function technique (IMETFT) and the method of the planar DS are applied with a detailed investigation to demonstrate a variety of solutions that the governing model can exhibit. Also, the stability analysis of solutions confirms that the solutions are stable.
海森堡铁磁体中阿克波塔方程的奇异吸引子、非线性动力学和丰富的新型孤子解
本研究的主要目的是从经典角度揭示与海森堡铁磁体有关的非线性阿克波塔方程的动力学特性。阿克波塔方程是研究磁学、光学以及曲线和曲面微分几何中非线性现象的基本模型。为此,我们首先创建了与拟议模型相关的动力学系统 (DS)。然后,利用平面 DS 理论研究系统中分岔的刺激因素。接下来,我们通过在后续动态设置中添加扰动项,系统地研究了 Akbota 方程的混沌现象。我们还通过显示二维和三维相位肖像验证了这一研究。我们还探讨了与参数相关的李亚普诺夫指数(LE)和分岔图。此外,还介绍了一些新颖的非线性动力学,如返回图、功率谱、递归图、分形维度和奇异的新混沌吸引子。模拟结果采用 RK-4 方法进行。对于几个孤子解,应用了改进的扩展 Tanh 函数技术(IMETFT)和平面 DS 方法,并进行了详细研究,以展示支配模型可能呈现的各种解。此外,解的稳定性分析也证实了这些解是稳定的。
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来源期刊
Chaos Solitons & Fractals
Chaos Solitons & Fractals 物理-数学跨学科应用
CiteScore
13.20
自引率
10.30%
发文量
1087
审稿时长
9 months
期刊介绍: Chaos, Solitons & Fractals strives to establish itself as a premier journal in the interdisciplinary realm of Nonlinear Science, Non-equilibrium, and Complex Phenomena. It welcomes submissions covering a broad spectrum of topics within this field, including dynamics, non-equilibrium processes in physics, chemistry, and geophysics, complex matter and networks, mathematical models, computational biology, applications to quantum and mesoscopic phenomena, fluctuations and random processes, self-organization, and social phenomena.
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