Probabilistic nonlocal gate operation via imperfect entanglement

被引：0
|
作者：
Jang, J [1 ]
Lee, J
Kim, MS
Park, EB
Park, YJ
机构：
[1] Elect & Telecommun Res Inst, Nat Secur Res Inst, Taejon 305350, South Korea
[2] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland
[3] Sogang Univ, Dept Phys, Seoul 121742, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2003年 / 42卷 / 04期
关键词：
nolocal gate; quantum computer;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Nonlocal gate operation is based on sharing an ancillary pair of qubits in perfect entanglement. When the ancillary pair is partially entangled, the efficiency of gate operation drops. Using general transformations, we devise probabilistic nonlocal gates, which perform the nonlocal operation conclusively when the ancillary pair is only partially entangled. We show that a controlled purification protocol can be implemented by the probabilistic nonlocal operation.
引用
收藏
页码：462 / 466
页数：5
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