Quantum super-resolution with balanced homodyne detection in low-earth-orbit

IF 1.2 4区 物理与天体物理 Q4 OPTICS
Ronakraj K Gosalia, Robert Malaney, Ryan Aguinaldo, Jonathan Green
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Abstract

Quantum super-resolution involves resolving two sources below the Rayleigh limit using quantum optics. Such a technique would allow high-precision inter-satellite positioning and tracking on communication and navigation constellations. Due to the size, weight and power constraints typical of low-earth-orbit (LEO) satellites, a simple solution is often preferred. Here, we show that a balanced homodyne detection (BHD) setup using a shaped single-mode local oscillator can achieve super-resolution despite typical photonic losses. We further analyze the impact of a fluctuating and fixed centroid misalignment due to satellite pointing issues, and find that fixed misalignment is comparatively more detrimental to the performance of a BHD setup. Thus, our study provides a practical assessment of BHD to achieve super-resolution on a modern LEO satellite platform. Finally, we discuss how our analysis can be extended to stellar sources for astronomical applications.
低地球轨道平衡同调探测量子超分辨率
量子超分辨率是指利用量子光学在低于瑞利极限的情况下分辨两个光源。这种技术可实现通信和导航星座的高精度卫星间定位和跟踪。由于低地球轨道(LEO)卫星通常在尺寸、重量和功率方面受到限制,因此简单的解决方案往往是首选。在这里,我们展示了使用成型单模本地振荡器的平衡同调检测(BHD)装置,尽管存在典型的光子损耗,但仍能实现超分辨率。我们进一步分析了由于卫星指向问题造成的波动和固定中心点偏差的影响,发现固定偏差对 BHD 设置的性能损害相对更大。因此,我们的研究为 BHD 在现代低地轨道卫星平台上实现超分辨率提供了实际评估。最后,我们讨论了如何将我们的分析扩展到天文应用中的恒星源。
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来源期刊
Laser Physics
Laser Physics 物理-光学
CiteScore
2.60
自引率
8.30%
发文量
127
审稿时长
2.2 months
期刊介绍: Laser Physics offers a comprehensive view of theoretical and experimental laser research and applications. Articles cover every aspect of modern laser physics and quantum electronics, emphasizing physical effects in various media (solid, gaseous, liquid) leading to the generation of laser radiation; peculiarities of propagation of laser radiation; problems involving impact of laser radiation on various substances and the emerging physical effects, including coherent ones; the applied use of lasers and laser spectroscopy; the processing and storage of information; and more. The full list of subject areas covered is as follows: -physics of lasers- fibre optics and fibre lasers- quantum optics and quantum information science- ultrafast optics and strong-field physics- nonlinear optics- physics of cold trapped atoms- laser methods in chemistry, biology, medicine and ecology- laser spectroscopy- novel laser materials and lasers- optics of nanomaterials- interaction of laser radiation with matter- laser interaction with solids- photonics
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