Optimal creation of entanglement using a two-qubit gate

被引：317

作者：

Kraus, B ^{[1
]}

Cirac, JI ^{[1
]}

机构：

[1] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

来源：

PHYSICAL REVIEW A | 2001年 / 63卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.63.062309

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider a general unitary operator acting on two qubits in a product state. We find the conditions such that the state of the qubits after the action is as entangled as possible. We also consider the possibility of using ancilla qubits to increase the entanglement.

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页数：8

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