物理学进展2017，Vol.37Issue(1)：13-21,9.DOI:10.13725/j.cnki.pip.2015.02.002
量子纠缠纯化与浓缩研究进展
Recent Development on Quantum Entanglement Purification and Concentration
摘要
Abstract
High-fidelity quantum entanglement is one of the most important physical resources in quantum information science, especially in quantum communications. However, in a practical transmission or the process for storing an entangled quantum system, it inevitably suffers from channel noise and its environment. The noise will make the entangled quantum system decoherent. Entan-glement purification and entanglement concentration are two important quantum techniques for depressing the decoherence of the entanglement. Entanglement purification is used to extract some high-fidelity maximally entangled states from an ensemble in a mixed state, where entan-glement concentration is used to distill some maximally entangled states from an ensemble in a less-entangled pure state. This article focuses on the introduction of some important entanglement purification schemes and entanglement concentration schemes, as well as the physical principles of these schemes.关键词
量子纠缠/纠缠纯化/纠缠浓缩/人工原子/超纠缠Key words
quantum entanglement/entanglement purification/entanglement concentration/artificial atom/hyper entanglement分类
数理科学引用本文复制引用
曹聪,王铁军,王川..量子纠缠纯化与浓缩研究进展[J].物理学进展,2017,37(1):13-21,9.基金项目
研究得到了国家自然科学基金委项目（编号61622103，61471050和11404031）的资助。 （）
