Transport behaviors of locally fractional coupled Brownian motors with fluctuating interactions

Huiqi Wang, Feixiang Ni, Lifeng Lin, Wangyong Lv and Hongqiang Zhu

Physica A: Statistical Mechanics and its Applications, 2018, vol. 505, issue C, 124-135

Abstract: In some complex viscoelastic mediums, it is ubiquitous that absorbing and desorbing surrounding Brownian particles randomly occur in coupled systems. The conventional method is to model a variable-mass system driven by both multiplicative and additive noises. In this paper, an improved mathematical model is created based on generalized Langevin equations (GLE) to characterize the random interaction with locally fluctuating number of coupled particles in the elastically coupled factional Brownian motors (FBM). By the numerical simulations, the effect of fluctuating interactions on collective transport behaviors is investigated, and some abnormal phenomena, such as cooperative behaviors, stochastic resonance (SR) and anomalous transport, are observed in the regime of sub-diffusion.

Keywords: Coupled system; Stochastic resonance (SR); Transport process; Stochastic particle dynamics (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:505:y:2018:i:c:p:124-135

DOI: 10.1016/j.physa.2018.03.047

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