Quantum circuit for three-qubit random states

被引：3
|
作者：
Giraud, Olivier [1 ,2 ,3 ,4 ]
Znidaric, Marko [5 ]
Georgeot, Bertrand [1 ,2 ,3 ,4 ]
机构：
[1] Univ Toulouse, F-31062 Toulouse, France
[2] UPS, F-31062 Toulouse, France
[3] Lab Phys Theor IRSAMC, F-31062 Toulouse, France
[4] CNRS, F-31062 Toulouse, France
[5] Univ Ljubljana, Dept Phys, Fac Math & Phys, SI-1000 Ljubljana, Slovenia
来源：
PHYSICAL REVIEW A | 2009年 / 80卷 / 04期
关键词：
information theory; quantum computing; ENTANGLEMENT; OPERATION; GATES;
D O I：
10.1103/PhysRevA.80.042309
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We explicitly construct a quantum circuit, which exactly generates random three-qubit states. The optimal circuit consists of three CNOT gates and fifteen single-qubit elementary rotations, parametrized by fourteen independent angles. The explicit distribution of these angles is derived, showing that the joint distribution is a product of independent distributions of individual angles apart from four angles.
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页数：7
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