论文标题
Einstein-Podolsky-Rosen-Rosen悖论，带有位置摩托车纠缠的宏观双子束
Einstein-Podolsky-Rosen Paradox with Position-Momentum Entangled Macroscopic Twin Beams
论文作者
论文摘要
空间纠缠是量子增强成像应用和高维量子信息方案的核心。特别是，对于成像和传感应用，需要具有宏观数量的光子数量的量子状态，以提供比经典最先进的真正优势。我们通过显示EPR空间（位置 - 摩托米）纠缠的存在，以其原始位置和动量形式的Einstein-Podolsky-Rosen（EPR）悖论，并具有明亮的双光束。电子式电荷耦合设备摄像机用于记录近距离和远场状态下明亮的双子梁的图像，以实现明显的违反不确定性原理的行为。我们进一步表明，在空间和时间的自由度中存在量子相关性，导致在近距离和远场中明亮双子束的空间波动之间存在空间挤压。这提供了对空间纠缠的另一项验证，并指出了明亮双子束中存在超牢房。
Spatial entanglement is at the heart of quantum enhanced imaging applications and high-dimensional quantum information protocols. In particular, for imaging and sensing applications, quantum states with a macroscopic number of photons are needed to provide a real advantage over the classical state-of-the-art. We demonstrate the Einstein-Podolsky-Rosen (EPR) paradox in its original position and momentum form with bright twin beams of light by showing the presence of EPR spatial (position-momentum) entanglement. An electron-multiplying charge-coupled-device camera is used to record images of the bright twin beams in the near and far field regimes to achieve an apparent violation of the uncertainty principle by more than an order of magnitude. We further show that the presence of quantum correlations in the spatial and temporal degrees of freedom leads to spatial squeezing between the spatial fluctuations of the bright twin beams in both the near and far fields. This provides another verification of the spatial entanglement and points to the presence of hyperentanglement in the bright twin beams.
