模块化不稳定性,生成和 rogue 波的演变在一般化的分数非线性施罗丁格方程中与权力定律非线性和理性潜能
Zijian Zhou1, Zhenya Yan2,3
1School of Mathematical Sciences, Laboratory of Mathematics and Complex Systems, MOE, Beijing Normal University, Beijing 100875, China.
Chaos (Woodbury, N.Y.)
|October 7, 2024
概括
本研究探讨了分数非线性施罗丁格方程中的调制不稳定性 (MI) 和流波 (RWs). 理性潜能使可控制的RW和W形单子成为可能,进步非线性波现象的理解.
科学领域:
- 非线性光学是非线性光学.
- 数学物理学的数学物理.
- 波浪现象是一种波浪现象.
背景情况:
- 分数非线性施罗丁格方程 (FNLS) 描述了复杂的波动力学.
- 调制不稳定性 (MI) 和流波 (RW) 是非线性系统中的关键现象.
- 理性潜能提供了一种控制波浪行为的方法.
研究的目的:
- 研究具有理性潜力的概括式分数非线性施罗丁格方程 (FNLS) 中的调制不稳定性 (MI) 和流波 (RWs).
- 分析系统参数 (σ,α,g) 对连续波 (CW) 分散和不稳定性的影响.
- 探索可控制的流波 (RW) 和W形单子的生成,使用时间依赖和时间独立的理性潜能.
主要方法:
- 对于连续波 (CWs) 的分散关系的导出.
- 对调制不稳定性 (MI) 和流波 (RW) 生产的理论分析.
- 数字模拟以证实理论发现.
- 研究更高层次的RW和多RW解决方案.
主要成果:
- 调制不稳定性 (MI) 在聚焦模式中得到确认.
- 可控制的恶作剧波 (RWs) 在失焦模式中使用时间依赖的理性潜力激发.
- 稳定的W形单子产生与时间独立的理性潜能.
- 确定了更高阶RW发电的条件.
- 在失焦立方FNLS方程中观察到的分离,可控制的多个RW.
结论:
- 理性潜能有效地控制FNLS方程中的流波 (RW) 和单子动态.
- 该研究提供了一个更深入的了解MI和RWs在分数非线性系统.
- 这些发现为未来研究非线性波现象和潜在应用提供了途径.
相关概念视频
Propagation of Waves
2.3K
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
2.3K
Traveling Waves: Lossless Lines
126
The provided content explores the behavior of traveling waves on single-phase lossless transmission lines. It begins with a single-phase two-wire lossless transmission line of length Δx, characterized by a loop inductance LH/m and a line-to-line capacitance C F/m. These parameters result in a series inductance LΔx and a shunt capacitance CΔx.
126
Wave Parameters
7.6K
The simplest mechanical waves are associated with simple harmonic motion and repeat themselves for several cycles. These simple harmonic waves can be modeled using a combination of sine and cosine functions. Consider a simplified surface water wave that moves across the water's surface. Unlike complex ocean waves, in surface water waves, water moves vertically, oscillating up and down, whereas the disturbance of the wave moves horizontally through the medium. If a seagull is floating on the...
7.6K
Linear Approximation in Frequency Domain
88
Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
88
Linear Approximation in Time Domain
69
Nonlinear systems often require sophisticated approaches for accurate modeling and analysis, with state-space representation being particularly effective. This method is especially useful for systems where variables and parameters vary with time or operating conditions, such as in a simple pendulum or a translational mechanical system with nonlinear springs.
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
69
Travelling Waves
5.2K
A wave is a disturbance that propagates from its source, repeating itself periodically, and is typically associated with simple harmonic motion. Mechanical waves are governed by Newton's laws and require a medium to travel. A medium is a substance in which a mechanical wave propagates, and the medium produces an elastic restoring force when it is deformed.
Water waves, sound waves, and seismic waves are some examples of mechanical waves. For water waves, the wave propagation medium is...
Water waves, sound waves, and seismic waves are some examples of mechanical waves. For water waves, the wave propagation medium is...
5.2K


