2025/02/06(Thu) 11:00 -12:30 一樓演講廳 1F, Auditorium
Title
Confinement-Driven Acceleration of First-Passage Rates
Speaker
Dr. Won Kyu Kim (Senior Researcher, Seoul National University Research Institute of Basic Sciences(SNU RIBS), Seoul, Korea & Associate Researcher, Korea Institute for Advanced Study(KIAS), Seoul, Korea)Abstract
Confinement affects stochastic processes, shaping trapping and escape dynamics, which are ubiquitous in soft matter and living systems. Here, we show that confinement can act as a geometry-dependent rectifier in passive systems, inducing optimally rapid first-passage events beyond free diffusion. Through analytic theory based on the Fick-Jacobs approach and Brownian dynamics simulations, we find nonmonotonic mean first-passage rates driven by the geometry of confinement. Our findings demonstrate how confinement enhances transport and reaction dynamics in trap-and-escape processes.
Language
演講語言 (Language): in English