Control of logic gates by dichotomous noise in energetic and entropic systems.
Control of logic gates by dichotomous noise in energetic and entropic systems.
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DOI：
10.1103/physreve.88.032122
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发表时间：
2013-09
期刊：
影响因子：
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通讯作者：
M. Das;D. Ray
中科院分区：
文献类型：
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作者：
M. Das;D. Ray
本文研究非线性动力系统对输入信号组合的随机响应。如果系统的状态被认为是输出，并且系统可以在由能量或熵势垒分离的两个状态之间进行转换，则响应可以假定为二进制值。我们展示了如何通过外部指数相关二分噪声来控制输入-输出对应关系，优化逻辑响应，该响应在相关时间的中间值处呈现最大值。这种共振表现为“逻辑”共振相关效应，并将随机系统的性能条件设置为逻辑门。的二分噪声的不对称性的作用进行了研究，数值模拟的结果与一个两状态模型，使用主方程的方法。
We consider the stochastic response of a nonlinear dynamical system towards a combination of input signals. The response can assume binary values if the state of the system is considered to be the output and the system can make transitions between two states separated by an energetic or entropic barrier. We show how the input-output correspondence can be controlled by an external exponentially correlated dichotomous noise optimizing the logical response which exhibits a maximum at an intermediate value of correlation time. This resonance manifests itself as a "logical" resonance correlation effect and sets the condition for performance of the stochastic system as a logic gate. The role of asymmetry of the dichotomous noise is examined and the results on numerical simulations are correlated with a two-state model using a master equation approach.