The study of purely quantum effects in chaotic systems based on semiclassical theory

基于半经典理论的混沌系统纯量子效应研究

• 批准号: 19F19315
• 负责人: 首藤 啓
• 金额: $ 0.96万
• 依托单位: Tokyo Metropolitan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2019
• 资助国家: 日本
• 起止时间: 2019-11-08 至 2022-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-19F19315/
• 关键词: 古典カオス; 一様双曲性; マルコフ分割; 高次元シンプレクティック写像; 馬蹄力学系; 半古典量子化; 量子カオス; 安定・不安定多様体; ホモクニニック軌道; 半古典論; 跡公式; ハミルトン系; ホモクリニック軌道; 安定多様体・不安定多様体; 古典作用; 軌道間相関

Our research achievements are twofold. First, by making use of the so called anti-integrable limit, we were able to investigate the topological structure of a four-dimensional Smale horseshoe, which is proposed by our group to be the first generic model of the original Smale horseshoe in two dimensions. Several important properties in two dimensions, such as uniformly hyperbolicity of the dynamics, has already been proven by the members of our group, and a final synthesis of our findings is currently undertaken. Second, my recent discovery has led to a new scheme of constructing the symbolic descriptions of chaotic orbits using a special set of so-called homoclinic orbits as the skeletons of the dynamics. The homoclinic orbits are expected to provide us with critical information on the construction of global Markov partitions for the entire set of the chaotic orbits. Investigations along this line of research is promising to provide us with novel tools that allow us to probe into generic and complicated systems that were otherwise inaccessible using the original Smale horseshoe method. The results will be put into two paper that are currently under preparation: “Symbolic Dynamics of a Four-dimensional Henon Map” and "Global Construction of Markov Partitions with Homoclinic Orbits”.

我们的研究成就是双重的。首先，通过使用所谓的反综合限制，我们能够研究四维的Smale Horsshoe的拓扑结构，这是我们的小组在两个维度上提出的原始Smale Horsshoe的第一个通用模型。我们小组的成员已经证明了两个维度的几个重要特性，例如动力学的统一双波利度，目前正在进行我们发现的最终综合。其次，我最近的发现导致了一种新的方案，该方案使用一组所谓的同型轨道作为动力学的骨架来构建混乱轨道的象征性描述。预计这些同型轨道将为我们提供有关整个混乱轨道的全球马尔可夫分区的关键信息。沿着这一研究的调查承诺为我们提供新的工具，使我们能够使用原始的Smale Horseshoe方法探究通用和复杂的系统，否则这些系统是无法访问的。结果将放入目前正在准备的两篇论文中：“四维亨逊地图的符号动态”和“具有同质轨道轨道轨道轨道的马尔可夫分区的全球构造”。

项目成果

Homoclinic and periodic orbit theory in classical and quantum chaos

经典混沌和量子混沌中的同宿和周期轨道理论

• 发表时间: 2020
• 作者: 藤岡佳佑;古川涼太;首藤啓;Li Jizhou;Jizhou Li
• 通讯作者: Jizhou Li

Periodic and homoclinic orbit theory in quantum chaos

量子混沌中的周期和同宿轨道理论

• 发表时间: 2021
• 作者: Li;Jizhou and Tomsovic;Steven;Jizhou Li;Jizhou Li;Jizhou Li
• 通讯作者: Jizhou Li

Asymptotic relationship between homoclinic points and periodic orbit stability exponents

同宿点与周期轨道稳定性指数之间的渐近关系

• DOI: 10.1103/physreve.100.052202
• 发表时间: 2019
• 期刊: Phys. Rev. E
• 作者: Li;Jizhou and Tomsovic;Steven
• 通讯作者: Steven

Homoclinic orbit theory in classical and quantum chaos

经典混沌和量子混沌中的同宿轨道理论

• 发表时间: 2022
• 作者: Li;Jizhou and Tomsovic;Steven;Jizhou Li
• 通讯作者: Jizhou Li

Quantum chaos for dummies

傻瓜的量子混沌

• 发表时间: 2022
• 作者: Li;Jizhou and Tomsovic;Steven;Jizhou Li;Jizhou Li
• 通讯作者: Jizhou Li