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| 1 | 一类Van Der Pol-Duffing模型的隐藏吸引子存在性问题显示文摘就目前的研究来说,隐藏吸引子是一个比较新颖的课题,而研究动力系统中隐藏吸引子的存在性问题是一项重要的研究课题。通过建立一个新颖的非线性Van Der Pol-Duffing振子模型,运用一项新的研究方法,即分析-数值方法,从而研究非线性动力系统中隐藏吸引子的存在性问题。基于经典的动力系统Hopf分支理论,根据Routh-Hurwitz判据讨论平衡点的稳定性,利用谐波线性化方法和分析-数值方法,分析并验证隐藏吸引子的存在性,最后通过数值模拟定位出隐藏吸引子。 | 聂家升 焦岑 吕小俊 | 2022 | 科学技术创新2022，，10： | 0 |
| 2 | Memory effect in time fractional Schrödinger equation显示文摘A significant obstacle impeding the advancement of the time fractional Schrodinger equation lies in the challenge of determining its precise mathematical formulation.In order to address this,we undertake an exploration of the time fractional Schrodinger equation within the context of a non-Markovian environment.By leveraging a two-level atom as an illustrative case,we find that the choice to raise i to the order of the time derivative is inappropriate.In contrast to the conventional approach used to depict the dynamic evolution of quantum states in a non-Markovian environment,the time fractional Schrodinger equation,when devoid of fractional-order operations on the imaginary unit i,emerges as a more intuitively comprehensible framework in physics and offers greater simplicity in computational aspects.Meanwhile,we also prove that it is meaningless to study the memory of time fractional Schrodinger equation with time derivative 1<α≤2.It should be noted that we have not yet constructed an open system that can be fully described by the time fractional Schrodinger equation.This will be the focus of future research.Our study might provide a new perspective on the role of time fractional Schrodinger equation. | 祖传金 余向阳 | 2024 | Chinese Physics B2024，33，2： | 0 |
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