Increasing Success Probability of a Probabilistic Quantum Teleportation

• 来源期刊: 理论物理通讯(英文版)
• 学科: 物理学
• 关键词: 成功概率 量子隐形传输 量子隐形传态 大肠杆菌 克劳斯法 量子纠缠 残留物 物理
• 年，卷（期）: 2010,（12）
• 页码范围: 1015-1018
• 页数: 4页
• 分类号: O431.2 Q78
• 语种: 英文

摘要

The probabilistic quantum teleportation scheme [Phys.Lett.A 305 (2002) 12] is improved via twoseemingly different methods (i.e., the usual ancilla method and the so-called Kraus method), respectively.The essenceof the improvements is to fetch a part from the residues so that the success probability is accordingly increased.The twoimproved versions and a similar protocol proposed by Li et al.[Phys.Rev.A 61 (2000) 034301] are compared mutuallyand discussed.It is found that they are equally efficient and can reach the success probability threshold determined bythe inherent entanglement of the quantum channel.