Kehui Sun

Jul 17, 2024 | link.aps.org | Jin Liu |Kehui Sun |Huihai Wang

This study investigates the impact of external forces on the movement of particles, specifically focusing on a type of box piecewise linear map that generates normal diffusion akin to Brownian motion. Through numerical methods, the research delves into the effects of two distinct external forces: linear forces linked to the particle's current position and periodic sinusoidal forces related to time.

Aug 1, 2023 | mdpi.com | Ziqi Zhou |Xuemei Xu |Zhaohui Jiang |Kehui Sun

Abstract:Some existing chaotic maps have the drawbacks of a narrow range of chaotic parameters and discontinuities, which may be inherited by new chaotic systems generated from them as seed maps. We propose a chaotic model that can generate N-dimensional chaotic systems to overcome the problem. By fixing the original parameters of the seed map in the chaotic range, we then introduce new parameters and use modular operations to widen the range of the parameters and increase the complexity.