How entangled can two couples get?

被引：154

作者：

Higuchi, A ^{[1
]}

Sudbery, A ^{[1
]}

机构：

[1] Univ York, Dept Math, York YO10 5DD, N Yorkshire, England

来源：

PHYSICS LETTERS A | 2000年 / 273卷 / 04期

关键词：

Density matrix - Elsevier - Pure state - Single qubits;

D O I：

10.1016/S0375-9601(00)00480-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe a pure state of four qubits whose single-qubit density matrices are all maximally mixed and whose average entanglement as a system of two pairs of qubits appears to be maximal. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：213 / 217

页数：5

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