Max Planck Institute for the Science of Light, Günther-Scharowsky-Straße 1/Building 24, Erlangen, Germany and Institute of Optics, Information and Photonics, University of Erlangen-Nuremberg, Staudtstraße 7/B2, Erlangen, Germany.
Department of Optics, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic.
Phys Rev Lett. 2013 Dec 6;111(23):230506. doi: 10.1103/PhysRevLett.111.230506. Epub 2013 Dec 4.
We experimentally demonstrate a protocol for entanglement distribution by a separable quantum system. In our experiment, two spatially separated modes of an electromagnetic field get entangled by local operations, classical communication, and transmission of a correlated but separable mode between them. This highlights the utility of quantum correlations beyond entanglement for the establishment of a fundamental quantum information resource and verifies that its distribution by a dual classical and separable quantum communication is possible.
我们通过可分离量子系统实验演示了纠缠分发协议。在实验中，通过局域操作、经典通讯和传输相关但可分离模式，使两个空间分离的电磁场模式纠缠。这凸显了量子关联在建立基本量子信息资源方面的效用，超越了纠缠，同时验证了通过双经典和可分离量子通讯分发其的可能性。
