Heralded Entanglement Between Widely Separated Atoms
Heralded Entanglement Between Widely Separated Atoms
复制标题
DOI：
10.1126/science.1221856
复制
发表时间：
2012-07-06
期刊：
影响因子：
56.9
通讯作者：
Weinfurter, Harald
中科院分区：
文献类型：
--
作者：
Hofmann, Julian;Krug, Michael;Weinfurter, Harald
纠缠是量子力学的本质特征。值得注意的是，两个或更多纠缠粒子的观察者将在他们的测量结果中发现无法用经典统计解释的相关性。为了使它成为一种有用的资源，特别是对于可扩展的长距离量子通信，有必要在遥远的大质量量子系统之间产生纠缠。我们报告了两个相距20米的单个铷-87原子的自旋之间的纠缠的产生和分析。我们的研究结果说明了量子信息科学的一个不可分割的资源的可行性，以及量子力学的基本测试。
Entanglement is the essential feature of quantum mechanics. Notably, observers of two or more entangled particles will find correlations in their measurement results that cannot be explained by classical statistics. To make it a useful resource, particularly for scalable long-distance quantum communication, the heralded generation of entanglement between distant massive quantum systems is necessary. We report on the creation and analysis of heralded entanglement between spins of two single rubidium-87 atoms trapped independently 20 meters apart. Our results illustrate the viability of an integral resource for quantum information science, as well as for fundamental tests of quantum mechanics.