Chaotic Dynamics in Near-Integrable Systems and the Role of Symmetries

近可积系统中的混沌动力学和对称性的作用

• 批准号: 9803567
• 负责人: Constance Schober
• 金额: $ 6.5万
• 依托单位: Old Dominion University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9803567&HistoricalAwards=false
• 关键词: Chaotic; Dynamics; Near; Integrable; Systems

This award will support research on mathematical models for nonlinear optical media. These models have the form of nonlinear partial differential equations that are integrable, i.e. that can be completely linearized in a certain sense, and of perturbations of such equations. The goal of the research is to further our understanding of chaotic excitation mechanisms for such models and to obtain specific solutions that correspond to periodic or single-pulsewaveforms. The theoretical results will also be used as benchmark problems fornumerical computation schemes.Mathematical models for optical media such as optical fibers and ring-lasercavities have the form of nonlinear differential equations. This research will address properties of such models that predict the behavior of such media.Examples include the natural shape and duration of light pulses that can travel along such fibers and the spontaneous generation of noise within the medium.

该奖项将支持非线性光学介质数学模型的研究。 这些模型具有可积的非线性偏微分方程的形式，即在某种意义上可以完全线性化，以及这些方程的扰动。 研究的目的是进一步了解这种模型的混沌激励机制，并获得对应于周期或单脉冲波形的特定解决方案。 理论结果也将被用作数值计算方案的基准问题。光学介质如光纤和环形激光腔的数学模型具有非线性微分方程的形式。 这项研究将解决这些模型的属性，预测这种介质的行为。例如，包括自然的形状和持续时间的光脉冲，可以沿着沿着这样的纤维和自发产生的噪声在介质中。