标题： 基于频率模式的关联-位移转换的量子照明 显示英文标题

标题： Quantum illumination via frequency-mode-based correlation-to-displacement conversion

摘要： 量子照明利用纠缠来超越经典目标检测，即使在高噪声环境中也是如此。令人惊讶的是，尽管环境退相干导致纠缠降级，其量子优势仍然存在。一个核心挑战在于设计最优接收器以利用这一优势，而关联到位移转换模块成为了一个有前景的候选方案。然而，这种转换模块的实际实现面临技术障碍，主要原因是涉及了大量模式。在这项工作中，我们通过提出一种频率模式纠缠源（具有匹配光子数）、针对广泛模式返回信号的异频检测方案以及腔增强量子脉冲门（用于可编程模式处理），解决了这些挑战。这个集成框架为实用量子照明系统的实现铺平了道路。 显示英文摘要

摘要： Quantum illumination leverages entanglement to surpass classical target detection, even in high-noise environments. Remarkably, its quantum advantage persists despite entanglement degradation caused by environmental decoherence. A central challenge lies in designing optimal receivers to exploit this advantage, with the correlation-to-displacement conversion module emerging as a promising candidate. However, the practical implementation of the conversion module faces technical hurdles, primarily due to the vast number of modes involved. In this work, we address these challenges by proposing a frequency-mode entangled source with matched photon numbers, a heterodyne detection scheme for the returned signals across vast modes, and a cavity-enhanced quantum pulse gate for programmable mode processing. This integrated framework paves the way for the realization of practical quantum illumination systems.