In 1935 Einstein and two colleagues, Boris Podolsky and Nathan Rosen, proposed a thought experiment (subsequently known as the " EPR paradox" ) to probe whether the weird behaviour seen in entanglement implied that quantum mechanics was not a complete description of reality.

1935 年，爱因斯坦和两位同事鲍里斯·波多尔斯基 (Boris Podolsky) 和内森·罗森 (Nathan Rosen) 提出了一个思想实验（后来被称为“EPR 悖论”），以探究纠缠中出现的怪异行为是否暗示量子力学不是对现实的完整描述。