Array-enhanced Logical Stochastic Resonance in Coupled Bistable Systems  

双稳动力学系统中耦合效应对逻辑随机共振现象的增强作用

作　　者：吴昊[1] 江慧军[1] 侯中怀[1,2] 

机构地区：[1]中国科学技术大学合肥微尺度物质科学国家实验室,合肥230026 [2]中国科学技术大学化学物理系,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2012年第1期70-76,I0004,共8页化学物理学报（英文）

摘　　要：We investigate the impact of coupling on the reliability of the logic system as well as the logical stochastic resonance （LSR） phenomenon in the coupled logic gates system. It is found that compared with single logic gate, the coupled system could yield reliable logic outputs in a much wider noise region, which means coupling can obviously improve the reliability of the logic system and thus enhance the LSR effect. Moreover, we find that the enhancement is larger for larger system size, whereas for large enough size the enhancement seems to be saturated. Finally, we also examine the effect of coupling strength, it can be observed that the noise region where reliable logic outputs can be obtained evolves non-monotonically as the coupling strength increases, displaying a resonance-like effect.

关 键 词：Logic gate Noise COUPLING Logical stochastic resonance 

分 类 号：O[理学]