论文标题
Einstein-Podolsky-Rosen与两个Bose-Einstein冷凝水实验
Einstein-Podolsky-Rosen experiment with two Bose-Einstein condensates
论文作者
论文摘要
1935年，爱因斯坦（Einstein），波多尔斯基（Podolsky）和罗森（EPR）构想了一个gedankenexperiment，它成为量子技术的基石，并且仍然挑战了我们对当今现实和当地的理解。虽然实验已经通过小量子系统实现，但EPR悖论的表现为空间分离，大量的许多粒子系统到目前为止仍然难以捉摸。我们在一个实验中观察到EPR悖论，该实验具有两个空间分离的玻璃纤维冷凝物，每个冷凝物含有约700个Rubidium原子。 EPR纠缠与对量子水平上两种冷凝水的个人操纵（如下所所示）构成了量子计量和信息处理的重要资源。我们的结果表明，量子力学与当地现实主义之间的冲突不会消失，因为系统大小增加到一千多个巨大的颗粒。
In 1935, Einstein, Podolsky and Rosen (EPR) conceived a Gedankenexperiment which became a cornerstone of quantum technology and still challenges our understanding of reality and locality today. While the experiment has been realized with small quantum systems, a demonstration of the EPR paradox with spatially separated, massive many-particle systems has so far remained elusive. We observe the EPR paradox in an experiment with two spatially separated Bose-Einstein condensates containing about 700 Rubidium atoms each. EPR entanglement in conjunction with individual manipulation of the two condensates on the quantum level, as demonstrated here, constitutes an important resource for quantum metrology and information processing with many-particle systems. Our results show that the conflict between quantum mechanics and local realism does not disappear as the system size is increased to over a thousand massive particles.
