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A new phenomenon of quantum-dot cellular automata
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ZENG Ling-gang, WANG Qing-kang, DAI Yong-bing. A new phenomenon of quantum-dot cellular automata[J]. Journal of Zhejiang University Science A, 2005, 6(10): 1090-1094.
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author="ZENG Ling-gang, WANG Qing-kang, DAI Yong-bing",
journal="Journal of Zhejiang University Science A",
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pages="1090-1094",
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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A1090"
}
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DOI - 10.1631/jzus.2005.A1090
Abstract: If an external point charge and the movable charges of an isolated quantum-dot cellular automata (QCA) cell have the same polarity, the point charge greatly affects the polarization (P) of the cell only when it is in a narrow band with periodically changing width. The center of the band is on a radius R circle. The ratio of R to the electric charge (q) is a constant determined by the parameters of the cell. A QCA cell can be used as charge detector based on the above phenomenon.
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2010-12-23 03:16:57
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