Modelling and design of quantum dot cellular automata

被引：11
|
作者：
Fu, Y
Willander, M
机构：
[1] Univ Gothenburg, Dept Phys, S-41296 Gothenburg, Sweden
[2] Chalmers Univ Technol, S-41296 Gothenburg, Sweden
来源：
JOURNAL OF APPLIED PHYSICS | 1998年 / 83卷 / 06期
关键词：
D O I：
10.1063/1.367086
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Research aimed at design of electronic computers that contain nano-size components has been developing very rapidly. In this work we study the quantum dot cellular automata (QCA) by the full Schrodinger equation in which the antisymmetric property of the many-electron state is included. We have concluded that because of the quantum wave characteristics, a localized electronic state appears only at very high gate voltages in a dual-gate Si quantum dot structure. The Coulomb exchange interaction due to the wave function overlapping between two electrons reduces the total energy of the electron pair. These two factors must be carefully studied for a functional QCA. (C) 1998 American Institute of Physics.
引用
收藏
页码：3186 / 3191
页数：6
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