scholarly journals Overdamped fractional Langevin equation and its stochastic resonance

2012 ◽  
Vol 61 (10) ◽  
pp. 100502
Author(s):  
Gao Shi-Long ◽  
Zhong Su-Chuan ◽  
Wei Kun ◽  
Ma Hong
2020 ◽  
Vol 34 (32) ◽  
pp. 2050310
Author(s):  
Guitian He ◽  
Heng Liu ◽  
Guoji Tang ◽  
Jinde Cao

The phenomenological model for the heavy tracers in viscoelastic media modeled by a generalized Mittag-Leffler fractional Langevin equation with the generalized Stokes force, the Basset force, the Hookean force, and the thermal force has been revisited. Under the fluctuation-dissipation relation, the generalized Stokes force describes the viscoelastic media by a Mittag-Leffler (ML) memory kernel. Furthermore, based on the background of ML function, the generalized Mittag-Leffler fractional derivative is introduced. Moreover, the exact expression of stationary first moment and the expression of spectral amplification (SPA) of a tracer model have been deserved by the generalized form of Shapiro-Loginov formula. The generalized stochastic resonance (GSR) phenomena has been systematically studied. Moreover, the GSR, reverse stochastic resonance (SR) phenomenon, bona fide SR, stochastic multi-resonance (SMR) phenomena, increasing multi-resonance and decreasing multi-resonance have been found. Especially, the periodic resonance phenomenon could be induced by the generalized Mittag-Leffler (GML) noise, which has been few observed in the previous literatures.


2012 ◽  
Vol 150 (5) ◽  
pp. 867-880 ◽  
Author(s):  
Suchuan Zhong ◽  
Kun Wei ◽  
Shilong Gao ◽  
Hong Ma

2019 ◽  
Vol 24 (6) ◽  
Author(s):  
Hamid Baghani ◽  
J. Nieto

In this paper, we study a nonlinear Langevin equation involving two fractional orders  α ∈ (0; 1] and β ∈ (1; 2] with initial conditions. By means of an interesting fixed point theorem, we establish sufficient conditions for the existence and uniqueness of solutions for the fractional equations. Some illustrative numerical examples are also discussed. 


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