Optical Interferometry with Quantum Networks
Optical Interferometry with Quantum Networks
复制标题
DOI：
10.1103/physrevlett.123.070504
复制
发表时间：
2019-08-15
影响因子：
8.6
通讯作者：
Lukin, M. D.
中科院分区：
文献类型：
--
作者：
Khabiboulline, E. T.;Borregaard, J.;Lukin, M. D.
我们提出了一种量子网络辅助的望远镜阵列光学干涉测量方法。在我们的方法中，入射光子的量子态沿着与到达时间索引一起存储在每个接收器处的二进制量子比特码中。在预期的光子到达速率下，通过纠缠辅助奇偶校验对量子态进行非局域检索，可以直接提取相位差，有效地避免了节点之间的传输损耗。与以前的建议相比，我们的计划（基于有效的量子数据压缩）提供了所需的纠缠带宽的指数下降。实验性的实施是可行的，然后与近期的技术，使天文物体的光学成像类似于完善的无线电干涉仪和推动分辨率超出了实际上可以实现的经典。
We propose a method for optical interferometry in telescope arrays assisted by quantum networks. In our approach, the quantum state of incoming photons along with an arrival time index are stored in a binary qubit code at each receiver. Nonlocal retrieval of the quantum state via entanglement-assisted parity checks at the expected photon arrival rate allows for direct extraction of the phase difference, effectively circumventing transmission losses between nodes. Compared to prior proposals, our scheme (based on efficient quantum data compression) offers an exponential decrease in required entanglement bandwidth. Experimental implementation is then feasible with near-term technology, enabling optical imaging of astronomical objects akin to well-established radio interferometers and pushing resolution beyond what is practically achievable classically.