A new phenomenon of quantum-dot cellular automata

被引：1
|
作者：
曾令刚
王庆康
戴永兵
机构：
[1] Shanghai 200030
[2] Shanghai Jiao Tong University
[3] Research Institute of Micro/Nanometer Science and Technology
[4] China
[5] School of Materials Science and Engineering
来源：
Journal of Zhejiang University Science A(Science in Engineering) | 2005年 / 10期
关键词：
Quantum-dot cellular automata (QCA); Quantum dot; Hubbard-type Hamiltonian;
D O I：
暂无
中图分类号：
TP273 [自动控制、自动控制系统];
学科分类号：
080201 ; 0835 ;
摘要：
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.
引用
收藏
页码：1090 / 1094
页数：5
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