Year: 2026
Type: article
Abstract: We demonstrate that confinement geometry can optimally accelerate first-passage rates beyond free diffusion in passive stochastic processes. Introducing generalized confinement model based on the Fick-Jacobs approach and simulations, we find nonmonotonic mean first-passage rates driven by confinement geometry and curvature. Through the transmission probability, our findings highlight how confinement optimizes transport dynamics in trap-and-escape processes, with implications for molecular translocation and reaction kinetics in soft matter and biological systems.
Author: Won Kyu Kim
Institution: Korea Institute for Advanced Study
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7133133976
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