定期的驾驶形状控制能量传输能量
Christian Simadji Ngamou1, Frank Thomas Ndjomatchoua2, Clément Tchawoua1
1Laboratory of Mechanics and Complex Systems, Department of Physics, Faculty of Science, <a href="https://ror.org/022zbs961">University of Yaoundé</a> 1, P.O. Box 812, Ngoa Ekelle, Yaoundé, Cameroon.
Physical review. E
|June 22, 2024
概括
非线性超传输 (NST) 受激发信号形状的影响,而不仅仅是振幅. 最佳的非形驱动可以控制通过格子的能量流,扩展了之前的形发现.
科学领域:
- 非线性动力学是一种非线性动力学.
- 凝聚物质物理学 凝聚物质物理学
- 波浪传播 波浪传播
背景情况:
- 非线性超传输 (NST) 是Geniet和Leon在2002年发现的.
- NST涉及在禁止的频段间隙中通过正弦边界条件创建非线性结构.
研究的目的:
- 研究激发信号形状对非线性超级传输的影响.
- 为了证明非状刺激可以诱导或抑制格子中的能量流.
主要方法:
- 进行了数值模拟.
- 进行了数学计算.
- 费米-帕斯塔-乌拉姆模型被用作一个案例研究.
主要成果:
- 周期性激发信号的形状显著影响能量流.
- 最佳的非形形状可以控制低于或高于NST值的能量传输.
- 一个为零的形状参数恢复了对正弦信号的先前发现.
结论:
- 非线性超传输取决于驱动振幅和激发信号形状.
- 非线形的驱动提供了一种新方法来控制非线性网格中的能量流.
- 这项研究扩展了对NST的理解,超越了侧侧刺激.
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