Quantum gates using spin states of triple quantum dot

被引：12
|
作者：
Sasakura, H
Muto, S
Ohshima, T
机构：
[1] Hokkaido Univ, Dept Appl Phys, Sapporo, Hokkaido 0608628, Japan
[2] Fujitsu Labs Ltd, Atsugi, Kanagawa 24301, Japan
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2001年 / 10卷 / 1-3期
关键词：
quantum dots; energy selectivity; photon assisted tunneling; tunneling qubit;
D O I：
10.1016/S1386-9477(01)00137-0
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We present a new model of quantum gates using electron spins of triplely coupled quantum dots, By using the energy selectivity of both photon-assisted tunneling and spin rotation of electrons, logic gates are realized by static and rotational magnetic field and resonant optical pulses. We used what we call a "tunneling qubit", which realized the switching of interaction between quantum bits. Possibility of the extension to many-qubit-system is also discussed. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：458 / 462
页数：5
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