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arXiv 1101.4618cond-mat.mes-hall
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混沌忆阻器

Chaotic memristor

T. Driscoll, Y. V. Pershin, D. N. Basov, M. Di Ventra

摘要:

我们提出并实验证明了混沌记忆电阻(忆阻器)。我们的方法的核心是使用一个电阻系统,其内部状态变量的运动方程类似于描述多阱势中的粒子。利用忆阻器仿真器实现了混沌忆阻器,并测量了其混沌特性。一个庞加莱图显示混沌的一个简单的非自治电路,只涉及一个电压源直接串联到一个忆阻器和一个标准电阻。我们还从理论上探讨了这个系统的一些细节,绘制吸引子和计算李雅普诺夫指数。所使用的多阱势类似于许多纳米级忆阻器件的势,这表明在其他现有忆阻系统中存在混沌动力学的可能性。

英文摘要:

We suggest and experimentally demonstrate a chaotic memory resistor (memristor). The core of our approach is to use a resistive system whose equations of motion for its internal state variables are similar to those describing a particle in a multi-well potential. Using a memristor emulator, the chaotic memristor is realized and its chaotic properties are measured. A Poincaré plot showing chaos is presented for a simple nonautonomous circuit involving only a voltage source directly connected in series to a memristor and a standard resistor. We also explore theoretically some details of this system, plotting the attractor and calculating Lyapunov exponents. The multi-well potential used resembles that of many nanoscale memristive devices, suggesting the possibility of chaotic dynamics in other existing memristive systems.

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