Nonequilibrium Dynamics of Chemically Active Particles

Abstract

Comprehensive SummaryChemically active motion is ubiquitous in many nature and artificial systems where each unit can move directionally by converting chemical energy into kinetic energy. Since the systems are driven by activity far from equilibrium, many dynamical behaviors forbidden in equilibrium systems may be induced. Nonequilibrium dynamics of such systems is then a hot multidisciplinary topic with great challenges. Here, we review our recent theoretical advances in some fundamental problems at the single active particle level, the collective behavior level, as well as in systems where active particles act as baths. What is the most favorite and original chemistry developed in your research group?We have focused on developments and applications of non‐equilibrium statistical methods. We are active in developing multi‐scale theories as well as modeling methods to solve puzzles in physical, chemical as well as biological complex systems. Study of dynamic behaviors of active systems as demonstrated in this review are some of the most exciting works in my group.How do you get into this specific field? Could you please share some experiences with our readers?When I was an undergraduate student, I encountered the fascinating field of nonlinear dynamics, being deeply attracted by the interesting and beautiful concepts like fractal, soliton and chaos. Later during my graduate study under the supervision of Prof. Houwen Xin, I began my research work in nonlinear chemistry, which brought me into the interdisciplinary field of complex system. Non‐equilibrium statistical mechanics can provide powerful tools and new insights into these complex systems, finding brilliant solutions for the puzzles, making the problems simple, but not simpler.Who influences you mostly in your life?My supervisor Prof. Xin is no doubt the most influential person in my life. His knowledge and insights in both research and life have been a great inspiration to me even till today.What is the most important personality for scientific research?I would say the most important one is certainly curiosity, the never‐ending thirst of truth. Other personalities such as dedication and hardworking are also indispensable, as they may take you through a period of research journey, but it is your curiosity that drives you to devote into research for a life time.What are your hobbies? What's your favorite book(s)?One of my major hobby is of course acquiring new knowledge such as watching online lectures, such as MIT open courses at OpenCourseWare, again driven by my inexhaustible curiosity. Apart from that I like playing Go in my spare time.How do you keep balance between research and family?Well I don't think there is a ‘balance’ but rather/instead a positive feedback loop. Research and family are both things I enjoy most, so I guess I'm just dedicated to one identity at a time which lightens me in the other.