Chaos-induced Set–Reset latch operation

Abstract

The phenomena of logical chaotic resonance (LCR) was demonstrated recently, namely, a chaos-driven bistable system can operate robustly as a specific logic gate in an optimal range of the intensity of chaotic driving force. Here we explore the possibility that let a chaos-driven bistable system operates directly as a latch (i.e. a basic building block of computers for storing information) by realizing chaos-induced Set–Reset latch operation. Numerical results show that reliable Set–Reset latch operation indeed exists in the chaos-driven bistable system if the intensity k of chaotic driving force is in an optimal range. Therefore, it is possible to realize chaos-assisted memory device according to LCR. Furthermore, the enhancement in broadening the optimal window of the intensity k, and in improving the response speed of the system can be implemented by introducing periodic driving force into the chaos-driven system. These results are further corroborated by circuit experiments.