Entanglement between two spatially separated atomic modes
Entanglement between two spatially separated atomic modes
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DOI：
10.1126/science.aao2035
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发表时间：
2018-04-27
期刊：
影响因子：
56.9
通讯作者：
Klempt, Carsten
中科院分区：
文献类型：
--
作者：
Lange, Karsten;Peise, Jan;Klempt, Carsten
量子计算、量子模拟和量子计量学领域的现代量子技术需要创建和控制大量纠缠粒子。在超冷中性原子系综中，数千个粒子之间的相互纠缠产生了非经典态。纠缠的产生依赖于相同粒子集合中基本的粒子交换对称性，这缺乏可明确定义的子系统之间纠缠的标准概念。在这里，我们提出了两个空间分离的云之间的纠缠的产生分裂的超冷全同粒子的双福克态制备的合奏。由于云可以单独处理，我们的实验开辟了一条道路，利用不可区分粒子的纠缠态用于量子信息应用。
Modern quantum technologies in the fields of quantum computing, quantum simulation, and quantum metrology require the creation and control of large ensembles of entangled particles. In ultracold ensembles of neutral atoms, nonclassical states have been generated with mutual entanglement among thousands of particles. The entanglement generation relies on the fundamental particle-exchange symmetry in ensembles of identical particles, which lacks the standard notion of entanglement between clearly definable subsystems. Here, we present the generation of entanglement between two spatially separated clouds by splitting an ensemble of ultracold identical particles prepared in a twin Fock state. Because the clouds can be addressed individually, our experiments open a path to exploit the available entangled states of indistinguishable particles for quantum information applications.