Effects of initial states on the quantum correlations in the generalized Grover search algorithm

被引：1

作者：

陈祯羽 ^{[1
]}

邱田会 ^{[1
]}

张文彬 ^{[2
]}

马鸿洋 ^{[1
]}

机构：

[1] School of Science, Qingdao University of Technology

[2] School of Information and Control Engineering, Qingdao University of Technology

来源：

Chinese Physics B | 2021年 / 08期

关键词：

Grover search algorithm; quantum correlations; initial states; the success probability;

D O I：

暂无

中图分类号：

O413 [量子论];

学科分类号：

070201 ;

摘要：

We investigate the correlations between two qubits in the Grover search algorithm with arbitrary initial states by numerical simulation. Using a set of suitable bases, we construct the reduced density matrix and give the numerical expression of correlations relating to the iterations. For different initial states, we obtain the concurrence and quantum discord compared with the success probability in the algorithm. The results show that the initial states affect the correlations and the limit point of the correlations in the searching process. However, the initial states do not influence the whole cyclical trend.

引用

页码：174 / 180

页数：7