论文标题
由单个光子和线性量子光学辅助的大基线光学成像
Large baseline optical imaging assisted by single photons and linear quantum optics
论文作者
论文摘要
在这项工作中，我们表明，通过结合量子计量和网络工具，可以扩展干涉光学望远镜的基线，从而改善点源位置的衍射限制成像。量子干涉仪基于单光子源，线性光电电路和有效的光子数计数器。出乎意料的是，由于每种模式低光子数量的热（恒星）源，并且在基线的高传输损耗中，检测到的光子概率分布仍然保留了有关源位置的大量费舍尔信息，从而可以在10μas的阶面显着改善位置源的分辨率。我们的建议可以通过当前技术来实施。特别是，我们的建议不需要实验性光学量子记忆。
In this work, we show that by combining quantum metrology and networking tools, it is possible to extend the baseline of an interferometric optical telescope and thus improve diffraction-limited imaging of point source positions. The quantum interferometer is based on single-photon sources, linear optical circuits, and efficient photon number counters. Surprisingly, with thermal (stellar) sources of low photon number per mode and high transmission losses across the baseline, the detected photon probability distribution still retains a large amount of Fisher information about the source position, allowing for a significant improvement in the resolution of positioning point sources, on the order of 10 μas. Our proposal can be implemented with current technology. In particular, our proposal does not require experimental optical quantum memories.
