Travel: CECAM Flagship Workshop

活性物质是指鸟类、鱼类、人类、细菌、无人机等自行式单位的集体。这些单位倾向于在没有任何外部指导的情况下，以各种结构自我组织。例如，鸟群和细菌群。活性物质的敏捷性和多功能性（如椋鸟的杂音）激励着科学家和工程师开发模仿这些特性的材料。本次研讨会将讨论这一快速发展领域的最新进展。该奖项将为参加2023年3月在瑞士CECAM举行的研讨会的美国研究人员提供旅费支持。最多5名美国参与者将通过该奖项获得支持，其中一些人将无法参加。活性物质是一个快速发展的研究领域。手性是许多自然和人工活性体系固有的基本性质。了解手性在相互作用的多体系统动力学中的作用是一个主要的挑战。当手性在生物和人工系统中发挥作用时，对集体现象的兴趣激增。发展对手性系统在外场驱动下失去平衡的复杂动力学的理解是一个重大的理论和计算挑战。研讨会将有助于评估在理解主动手性体系方面的最新发展和突出挑战。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Active matter refers to collectives of self-propelled units, e.g., birds, fish, humans, bacteria, drones. The units tend to self-organize in various structures, without any external guidance. For example, birds flock and bacteria swarm. The agility and versatility of active matter (as seen in the starling murmuration) is inspiring scientists and engineers to develop materials mimicking these properties. This workshop will discuss the latest advances in this rapidly evolving field. This award will provide travel support for US researchers to attend the workshop in CECAM, Switzerland, in March 2023. Up to 5 US participants will be supported through this award, some of whom would not otherwise be able to attend.Active matter a rapidly evolving area of research. Chirality is an intrinsic fundamental property of many natural and artificial active systems. Understanding the role of chirality in dynamics of interacting many-body systems is a major challenge. There has been a surge of interest in collective phenomena that arise when chirality comes into play in both biological and artificial systems. Developing an understanding of the complex dynamics in chiral systems driven out-of-equilibrium by external fields represents a significant theoretical and computational challenge. The workshop would help to assess recent developments and outstanding challenges in understanding of active chiral systems.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.