量子计算机
量子门
量子电路
量子算法
计算
计算机科学
量子傅里叶变换
量子
量子信息
拓扑(电路)
量子网络
算法
数学
量子力学
物理
组合数学
作者
Shi-Liang Zhu,Z. D. Wang
标识
DOI:10.1103/physreva.67.022319
摘要
We propose an experimentally feasible scheme to achieve quantum computation based on a pair of orthogonal cyclic states. In this scheme, quantum gates can be implemented based on the total phase accumulated in cyclic evolutions. In particular, geometric quantum computation may be achieved by eliminating the dynamic phase accumulated in the whole evolution. Therefore, both dynamic and geometric operations for quantum computation are workable in the present theory. Physical implementation of this set of gates is designed for NMR systems. Also interestingly, we show that a set of universal geometric quantum gates in NMR systems may be realized in one cycle by simply choosing specific parameters of the external rotating magnetic fields. In addition, we demonstrate explicitly a multiloop method to remove the dynamic phase in geometric quantum gates.
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