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arXiv 2312.03343quant-ph
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在延迟选择量子擦除方案中利用相位控制相干光子观测超分辨

Observations of super-resolution using phase-controlled coherent photons in a delayed-choice quantum eraser scheme

Sangbae Kim, Byoung S. Ham

AI总结:

该研究在延迟选择量子擦除方案中利用相位控制相干光子实现高阶强度关联超分辨,相位分辨率达到海森堡极限,为兼容相干光学技术的实用量子传感提供新途径。

摘要:

过去几十年来,突破标准量子极限的超分辨一直被广泛研究,以服务于精密目标探测的量子传感应用。不仅高阶纠缠光子,相位控制相干光子也已被用于演示超分辨。然而,由于高阶纠缠光子对生成效率极低且信噪比超低,量子传感受到严重限制。在此,我们报告在延迟选择量子擦除方案中利用相位控制相干光子观测相干激发超分辨。通过对量子擦除器进行相位操控,观测到它们之间高阶强度关联的超分辨,其相位分辨率满足海森堡极限。这种新型精密相位探测技术为与当前基于相干光学的技术兼容的量子传感实际应用打开了大门。

英文摘要:

Super-resolution overcoming the standard quantum limit has been intensively studied for quantum sensing applications of precision target detection over the last decades. Not only higher-order entangled photons but also phase-controlled coherent photons have been used to demonstrate the super-resolution. Due to the extreme inefficiency of higher-order entangled photon-pair generation and ultralow signal-to-noise ratio, however, quantum sensing has been severely limited. Here, we report observations of coherently excited super-resolution using phase-controlled coherent photons in a delayed-choice quantum eraser scheme. Using phase manipulations of the quantum erasers, super-resolution has been observed for higher-order intensity correlations between them, satisfying the Heisenberg limit in phase resolution. This new type of precision phase-detection technique opens the door to practical applications of quantum sensing compatible with current technologies based on coherence optics.

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