Title: Conformation and dynamics of partially active linear polymers Show Chinese title

Title: 部分活性线性聚合物的构象和动力学

Abstract: We perform numerical simulations of isolated, partially active polymers, driven out-of-equilibrium by a fraction of their monomers. We show that, if the active beads are all gathered in a contiguous block, the position of the section along the chain determines the conformational and dynamical properties of the system. Notably, one can modulate the diffusion coefficient of the polymer from {active-like to passive-like} just by changing the position of the active block. Further, in special cases, enhancement of diffusion can be achieved by decreasing the overall polymer activity. Our findings may help in the modelization of active biophysical systems, such as filamentous bacteria or worms. Show Chinese abstract

Abstract: 我们对孤立的、部分活跃的聚合物进行了数值模拟，这些聚合物由于其单体的一部分而处于非平衡状态。 我们表明，如果活性珠子聚集在一个连续的块中，链上的位置决定了系统的构象和动力学特性。 值得注意的是，仅通过改变活性块的位置，就可以调节聚合物的扩散系数为{从主动态到被动态}。 此外，在特殊情况下，可以通过降低整体聚合物活性来增强扩散。 我们的发现可能有助于主动生物物理系统的建模，例如丝状细菌或蠕虫。