Quantum logic gates based on coherent electron transport in quantum wires

被引：192
|
作者：
Bertoni, A
Bordone, P
Brunetti, R
Jacoboni, C
Reggiani, S
机构：
[1] Univ Modena & Reggio Emilia, Dipartimento Fis, Ist Nazl Fis Mat, Modena, Italy
[2] Univ Bologna, DEIS, Bologna, Italy
来源：
PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 25期
关键词：
D O I：
10.1103/PhysRevLett.84.5912
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It is shown that the universal set of quantum logic gates can be realized using solid-state quantum bits based on coherent electron transport in quantum wires. The elementary quantum bits are realized with a proper design of two quantum wires coupled through a potential barrier Numerical simulations show that (a) a proper design of the coupling barrier allows one to realize any one-qbit rotation and (b) Coulomb interaction between two qbits of this kind allows the implementation of the CNOT gate. These systems are based on a mature technology and seem to be integrable with conventional electronics.
引用
收藏
页码：5912 / 5915
页数：4
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