论文标题
通过空间本地化的操作和古典交流无法可区分性增强的纠缠恢复
Indistinguishability-enhanced entanglement recovery by spatially localized operations and classical communication
论文作者
论文摘要
我们扩展了一项程序，该程序利用了相同粒子的空间不可区分，以恢复两个与马尔可夫嘈杂环境相互作用的量子位之间变质的纠缠。在这里，空间本地化的操作和经典通信（SLOCC）操作框架用于激活无法区分的成分的纠缠恢复。我们考虑噪声在整个过程持续时间内作用的现实情况。考虑了三种标准的噪声：相阻尼，去极化和振幅阻尼通道。在这种一般情况下，我们发现纠缠以与空间不可区分程度成正比的数量恢复。这些结果将SLOCC提升到一个实用框架，用于在空间上无法区分的子系统的量子网络中访问和利用量子状态保护。
We extend a procedure exploiting spatial indistinguishability of identical particles to recover the spoiled entanglement between two qubits interacting with Markovian noisy environments. Here, the spatially localized operations and classical communication (sLOCC) operational framework is used to activate the entanglement restoration from the indistinguishable constituents. We consider the realistic scenario where noise acts for the whole duration of the process. Three standard types of noises are considered: a phase damping, a depolarizing, and an amplitude damping channel. Within this general scenario, we find the entanglement to be restored in an amount proportional to the degree of spatial indistinguishability. These results elevate sLOCC to a practical framework for accessing and utilizing quantum state protection within a quantum network of spatially indistinguishable subsystems.
