The Self-propelling Velocity,Chirality And Noise Correlation Effects On Entropy Stochastic Resonance

In this dissertation,we uses the computer digital simulation methods to study the effects of the self-propelling velocity,chirality and noise correlation effects on the entropy stochastic resonance of an active Brownian particle.First,the article outlines the dynamic behavior of the chiral Brownian particle and the stochastic resonance model,and introduces in detail the captive boundary model and the JP-type chiral active Brownian particle model involved in this article.Then we deeply study the effects of the self-propulsion,chirality and noise correlation on the entropy stochastic resonance of active Brownian particles under two different captive boundaries,and obtained a series of research results.The innovation of this article are as follows: Firstly,we designed a new double-circular cavity boundary with same curvature everywhere(except for the singularities at the hole),which avoids the boundary effect to a certain extent.Meanwhile we also consider the autonomous rotation(i.e.chirality)of active Brownian particles and discusses the the impact of noise correlation.The simulation results show that,as two important characteristics of active dynamics,chirality and self-propulsion have played a key role in the entropy stochastic resonance of active Brownian particles,respectively.(i)In the absence of spatial Paranoid force,self-propulsion is a necessary condition for Brownian particles to generate entropy stochastic resonance,passive Brownian particles cannot generate entropy stochastic resonance in a captive space where there is no paranoid force,and the resonance intensity will decrease with the increase of self-propulsion speed;(ii)Chirality can promote the occurrence of entropy stochastic resonance of active Brownian particles.Especially in circular double-chamber space,the signal power spectrum gain of active Brownian particles with proper chirality will be several times that of achiral one;In particular,through numerical simulation of the random motion trajectory of the active Brown particles,we were surprised to find that:(iii)The frontal entropy stochastic resonance of the achiral active particles in a circular double cavity is a ”false resonance”,and the Brownian particles is difficult to pass through the hole between the two cavities,actually.But when we impart chirality to the particle,the entropy stochastic resonance occurs immediately;In addition,after considering the noise correlation effect,we find that:(iv)The larger the noise correlation coefficient,the stronger the entropy random resonance strength and the broader the resonance peak.