Optimal creation of entanglement using a two-qubit gate

被引：300
|
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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