Tempered Mittag-Leffler noise-induced resonant behaviors in the generalized Langevin system with random mass

Tempered Mittag-Leffler noise-induced resonant behaviors in the generalized Langevin system with random mass
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具有随机质量的广义 Langevin 系统中的缓和 Mittag-Leffler 噪声引起的谐振行为

DOI:
10.1007/s11071-019-05228-7
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发表时间:
2019-09
期刊:
影响因子:
5.6
通讯作者:
Wang Huiqi
Wang Huiqi
中科院分区:
工程技术2区
文献类型:
--
作者:
Lin Lifeng;Wang Huiqi

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在这项研究中,我们提出了带有缓和的米塔格-莱弗勒(M-L)噪声的变质量广义朗之万方程,并从输出幅度放大的角度研究了广义随机共振现象。基于数值结果,我们系统地研究了记忆指数、记忆时间和回火参数对各种参数的依赖关系,并进一步讨论了记忆指数、记忆时间和回火参数之间的相互作用,从而使随机多共振(SMR)多样化,包括双峰GSR、三峰GSR和四峰GSR。值得强调的是,在含有调和分数高斯噪声的GLE中没有观察到后两种SMR现象。此外,作为具有回火M-L噪声的推广,传统的具有M-L记忆核、幂规律记忆核或指数型记忆核的GLES可以有效地推导为回火M-L记忆核的特例。因此,这些结果也为在潜在的应用中通过系统参数控制来操纵GSR行为提供了更广泛的支持。
In this study, we propose the fluctuating-mass generalized Langevin equation (GLE) with a tempered Mittag-Leffler (M-L) noise, and investigate the generalized stochastic resonance (GSR) phenomena in terms of output amplitude amplification. Based on numerical results, we study the dependence on various parameters systematically, and further discuss the interplay between memory exponent, memory time and tempering parameter, which diversifies the stochastic multi-resonance (SMR), including double-peak GSR, triple-peak GSR and quadruple-peak GSR. It is worth emphasizing that the latter two SMR phenomena have not been observed in the GLE with tempered fractional Gaussian noise. Moreover, as a generalization with tempered M-L noise, the conventional GLEs with M-L memory kernel, power-law memory kernel, or exponent-form memory kernel, can be effectively derived as the special cases of tempered M-L memory kernel. Thus, these results also provide more extensive support for manipulating the GSR behaviors through system parameter control in the potential applications.
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