Entropic stochastic resonance in a T-shaped structure

摘要：
在几何受限的布朗动力学系统中,系统结构对其中布朗粒子的运动能够产生许多新奇的影响,出现一些有意思的现象,例如随机共振.为此,对布朗粒子在漏斗状T形结构中的运动进行了数值探究,发现体系中存在熵随机共振现象.模拟结果显示T形结构中的熵随机共振与纵向力G,结构几何,以及横向周期驱动关系密切.借助熵势理论,T形结构中的熵随机共振机制得到了充分阐释.由于T形结构具有简单性和一般性,在其中发现熵随机共振有助于进一步研究其他微结构系统中的随机共振现象,也有助于研究微结构系统中微小颗粒的控制与筛选.

In Brownian dynamical systems with confined structures,the system structures have many novel effects on the motion of Brownian particles inside,such as stochastic resonances.Hence,the motion of Brownian particles in a simple funnel-like T-shaped structure was investigated,and it was found that entropic stochastic resonance phenomenon exists in the system.Furthermore,the simulation results show that the entropic stochastic resonance in T-shaped structure is closely related to the vertical force G,the structure geometry,and the transverse periodic drive.According to the entropy potential theory,the mechanism of entropic stochastic resonance in T-shaped structure is fully explained.The entropic stochastic resonance in T-shaped structure is helpful for the exploration of stochastic resonance in different microscopic systems,as well as the control and screening of micro particles in the systems.

作者：
段正路 段守惠 樊碧璇

Duan Zhenglu;Duan Shouhui;Fan Bixuan(College of Physics and Communication Electronics,Jiangxi Normal University,Nanchang 330022,China)

机构地区：
江西师范大学物理与通信电子学院

出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2022年第4期14-19,共6页

Journal of Henan Normal University(Natural Science Edition)

基金：
国家自然科学基金(11964014) 江西省主要学科学术与技术带头人(20204BCJ23026) 江西省自然科学基金项目(20212BAB201018)。

关键词：
布朗动力学系统 T形结构 随机共振

Brownian dynamical systems T-shaped structure stochastic resonance

分类号：
O414 [理学—理论物理]

T形结构中的熵随机共振.pdf