Two Approaches for Indirect Teleportation with Partially Entangled States

• 来源期刊: 理论物理通讯(英文版)
• 学科: 物理学
• 关键词: 隐形传输 纠缠态 间接 量子比特 传输通道 大肠杆菌 资源消耗 量子态
• 年，卷（期）: 2010,（12）
• 页码范围: 1010-1014
• 页数: 5页
• 分类号: O413.1 TQ533.1
• 语种: 英文

摘要

Teleportation of a qubit with two partially entangled qubit states linking three nodes as quantum channels isextensively studied via the usual ancilla method.With the method two realization approaches, i.e., the node progressionapproach and the global accumulation approach, are presented.Their resource consumptions, operation complexities,and efficiencies are evaluated and compared.It is found that the latter approach is better than the former one besides theerror is partially self-corrected.The latter approach is further improved so that two merits are resultant.The improvedversion is compared with a similar protocol [M.Y.Wang and F.L.Yan, Eur.Phys.J.D 54 (2009) 111].Their meritsand additional costs are exposed.