论文标题
量子辅助光学干涉仪：仪器要求
Quantum-Assisted Optical Interferometers: Instrument Requirements
论文作者
论文摘要
最近有人提出，如果可以向他们提供量子机械纠缠的量子对来源，从而实现了超长的基准并使天体物理学和宇宙学中的许多主题受益，那么光学干涉仪可能不需要相位稳定的光学连接。我们开发了这个想法的新变化，建议在两个解耦的站点可以干预来自两个不同来源的光子，仅需要它们之间的慢速经典连接。我们表明，这种方法可以允许对两个来源的相对天体测量值进行高精度测量，并具有简单的估计值，使角度分辨率为$ 10 \μ$，因为在几个小时内观察了两个明亮的恒星。我们还对这些观察的仪器提供了要求，尤其是关于其时间和光谱分辨率的要求。最后，我们讨论了仪器实施和首次原理实验的可能技术。
It has been recently suggested that optical interferometers may not require a phase-stable optical link between the stations if instead sources of quantum-mechanically entangled pairs could be provided to them, enabling extra-long baselines and benefiting numerous topics in astrophysics and cosmology. We developed a new variation of this idea, proposing that photons from two different sources could be interfered at two decoupled stations, requiring only a slow classical connection between them. We show that this approach could allow high-precision measurements of the relative astrometry of the two sources, with a simple estimate giving angular resolution of $10 \ μ$as in a few hours' observation of two bright stars. We also give requirements on the instrument for these observations, in particular on its temporal and spectral resolution. Finally, we discuss possible technologies for the instrument implementation and first proof-of-principle experiments.
