Active complex plasmas

活性复合等离子体

• 批准号: 401300566
• 负责人: Privatdozent Dr. Alexei Ivlev
• 金额: --
• 依托单位: Lehrstuhl II: Weiche Materie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/401300566?language=en
• 关键词: Active; complex; plasmas

The physics of microswimmers, which are active colloidal particles that self-propel in a liquid and dissipate energy while they move, represents a booming area of soft matter science. Here we focus on the complementary situation of "microflyers" in dilute gases, where energy dissipation is small but inertial effects become highly relevant. We propose to utilize the fact that individual microparticles in (quasi-)two-dimensional complex plasmas can be driven out of equilibrium in a controlled way. Such an approach enables realization of different classes of artificial microflyers and allows us to coin the term active complex plasmas for this novel domain of research. In this proposal, active complex plasmas will be modeled and classified; the underlying physical laws will be determined and the single-particle and collective behavior of microflyers will be identified by theory and computer simulations. In collaboration with experimental groups, the way will be paved to realize these artificial flyers at the micro-scale.

微游泳者是一种活跃的胶体粒子，在液体中自我推进，并在运动时耗散能量。微游泳者的物理学代表了软物质科学的一个蓬勃发展的领域。在这里，我们关注的是稀气体中“微飞体”的互补情况，在这种情况下，能量耗散很小，但惯性效应变得高度相关。我们建议利用（准）二维复杂等离子体中的单个微粒可以以一种可控的方式被驱动出平衡的事实。这种方法可以实现不同类别的人工微型飞行器，并使我们能够为这一新的研究领域创造活跃复杂等离子体这一术语。在这个建议中，活跃的复杂等离子体将被建模和分类；将确定基本的物理定律，并通过理论和计算机模拟确定微飞行器的单粒子和集体行为。通过与实验小组的合作，将为在微观尺度上实现这些人造飞行器铺平道路。