Analysis of effect of temperature variation on computational faithfulness of a QCA XOR gate

International Conference on Electronics, Communication and Instrumentation (ICECI) Pub Date : 2014-03-17 DOI:10.1109/ICECI.2014.6767385

Debasis Roy, S. Maitra, D. De, Kasturi Mukherjee

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引用次数: 4

Abstract

The efficiency of the performance of Quantum Dot Cellular Automata Exclusive-OR gate in terms of the criteria of computational faithfulness for varying temperature range is studied in this paper. The cell layout of the quantum dot cellular automata three-input Exclusive-OR gate is designed. However, the environmental noise such as temperature fluctuation influences the polarizations of the cells in the circuit layout of the Exclusive-OR gate. The array of cells containing the nanostructure quantum dots forms the channel for the computation of the Exclusive-OR operation. So, this noise affects the efficacy of the logical transformation of the inputs to the output as predicted by the truth table of the Exclusive-OR gate. Shannon's information theoretic measures are applied to calculate the entropy, conditional entropy and mutual information of this noisy computational channel taking into account the variation of cell polarizations due to thermal randomness. Finally, the computational faithfulness of the Exclusive-OR gate is statistically analyzed and the fuzzy multi-valued status of the performance of the quantum-cellular automata Exclusive-OR gate is obtained in this article.

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温度变化对QCA异或门计算信度的影响分析

本文从计算信度的角度研究了量子点元胞自动机异或门在变温度范围内的性能效率。设计了量子点元胞自动机三输入异或门的单元布局。但是，温度波动等环境噪声会影响异或门电路布局中单元的极化。包含纳米结构量子点的单元阵列形成了计算异或操作的通道。因此，这种噪声影响输入到输出的逻辑转换的有效性，正如异或门的真值表所预测的那样。考虑热随机性引起的细胞极化变化，应用Shannon信息理论方法计算了该噪声计算通道的熵、条件熵和互信息。最后，对异或门的计算信度进行了统计分析，得到了量子元胞自动机异或门性能的模糊多值状态。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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International Conference on Electronics, Communication and Instrumentation (ICECI)

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