标题： 增强压缩的光子数测量用于GKP态生成 显示英文标题

标题： Squeezing-Enhanced Photon-Number Measurements for GKP State Generation

摘要： 我们提出了一种生成GKP态的架构，其中使用正交压缩操作来控制概率光子数测量的平均光子数统计特性，这些测量是在高斯资源态上进行的。 具体而言，我们提出了一种架构，采用基于量子隐形传态的压缩协议，并将多项式门应用集成到时间复用多模簇态中，以生成高振幅的猫态，这些猫态随后用于生成具有高正交有效压缩的GKP态。 与我们之前的工作相比，除了使用压缩作为资源外，该架构通过最小化生成GKP态所需的同调测量数量来减少阻尼和噪声。 我们通过实现11.5分贝的簇态压缩故障容限，使用RHG表面码进行错误校正，无需主动切换或光子数资源态，证明了这些改进的有效性——包括动态输入态重置和改进的繁殖算法。 显示英文摘要

摘要： We present an architecture for the generation of GKP states in which quadrature squeezing operations are used to control the average photon number statistics of probabilistic photon number measurements on Gaussian resource states. Specifically, we present an architecture employing a teleportation-based squeezing protocol and polynomial-gate applications integrated into a time-multiplexed multi-mode cluster state to generate cat states with high amplitudes, which are consequently used to generate GKP states with high quadrature effective squeezing. Compared to our previous work, in addition to using squeezing as a resource, the present architecture reduces damping and noise by minimizing the number of homodyne measurements required in GKP state generation. We demonstrate the effectiveness of these improvements - including dynamic input-state resetting and an improved breeding algorithm - by achieving a fault-tolerance threshold of 11.5 dB cluster squeezing using the RHG surface code for error correction, without requiring active switching or photon-number resource states.