Synthesis of some three-qubit gates and their implementation in a three spins system coupled with Ising interaction

被引：5
|
作者：
Wei HaiRui [1 ]
Di YaoMin [1 ]
Wang Yan [1 ]
机构：
[1] Xuzhou Normal Univ, Sch Phys & Elect Engn, Xuzhou 221116, Peoples R China
来源：
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2010年 / 53卷 / 04期
关键词：
three-qubit gate; three spins system; Ising interaction; the sequences of control pulses and drift processes; CARTAN DECOMPOSITION; QUANTUM COMPUTATION; REALIZATION; FACTORIZATION; OPERATORS; CIRCUITS; TOFFOLI;
D O I：
10.1007/s11433-010-0165-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The synthesis of the Toffoli gate, Fredkin gate, three-qubit Inversion-on-equality gate and D(alpha) gate, as well as their implementation in a three spins system coupled with Ising interaction are investigated. The sequences of the control pulse and the drift process to implement these gates are given. It is revealed that the implementation of some three-qubit gates in a circular spin chain is much better than in a linear spin chain, and every two measurements of the quantum computation complexity are not always consistent. It is significant to directly study the implementation of the multi-qubit gates and even more complicated components of quantum information processing without resorting to their synthesis.
引用
收藏
页码：664 / 671
页数：8
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