论文标题
部分可观测时空混沌系统的无模型预测
Active Brownian particles can mimic the pattern of the substrate
论文作者
论文摘要
活性的布朗颗粒（ABP）被称为成功建模底物上移动微生物的成功方法。在最近的研究中，结果表明，这种生物可以感觉到底物的特征。在此类工作的激励下，我们研究了具有空间依赖活性的基材上ABP移动的动力学和稳定状态。在底物上，某些区域的活性很高，而其他区域则是颗粒作为被动的布朗颗粒的行为。该系统以二维为二维，sigmoid，ghussian和锥形形状分布在底物上。活动曲线的整个接口对称分为两个区域。这导致粒子从活性区域流向被动区域。粒子密度曲线，极化和通量的最终稳态非常遵循不均匀活性的结构，高活性区域的密度较低，在界面处最大，并且在被动区域的平均密度几乎恒定。此外，在二维底物上的各种形状和设计的稳态密度曲线。因此，在不均匀底物上的ABP收集可以模仿底物的不均匀性。
Active Brownian particles (ABPs) are termed out to be a successful way of modeling the moving microorganism on the substrate. In recent studies, it is shown that such organisms can sense the characteristics of the substrate. Motivated by such work, we studied the dynamics and the steady state of ABP moving on a substrate with space-dependent activity. On the substrate, some regions are marked as high in activity, and other regions are such that particles behave as passive Brownian particles. The system is studied in two dimensions with step, sigmoid, Gaussian and cone shape distribution of activity profile on the substrate. The whole interface of the activity profile is symmetrically divided into two regions. This lead to the flow of particles from the active region to the passive region. The final steady state of particle density profile, polarisation and flux very much follows the structure of the inhomogeneous activity and the density in high activity region is lower, maximum at the interface and nearly constant with mean density in the passive region. Further, the steady state density profile for various shapes and designs on two-dimensional substrates. Hence the collection of ABPs on an inhomogeneous substrate can mimic the inhomogeneity of the substrate.
