论文标题
无噪声线性扩增的广义量子剪刀
Generalized quantum scissors for noiseless linear amplification
论文作者
论文摘要
我们概括了光态截断和无噪声线性放大的概念，以使fock-state扩展光学状态的截断为高阶，并同时使用线性光学元件对其进行放大。所得的广义量子剪刀对于无噪声线性放大比并行使用多个剪刀更有效，并且在实验上是实用的。作为一个特殊的例子，我们专注于三阶剪刀设备，并以目标状态的忠诚度，成功的概率，可蒸馏的纠缠以及引入的非高斯性数量证明了优势。
We generalize the concept of optical state truncation and noiseless linear amplification to enable truncation of the Fock-state expansion of an optical state to higher order and to simultaneously amplify it using linear optics. The resulting generalized quantum scissors are more efficient for noiseless linear amplification than employing multiple scissors in parallel and are experimentally practical. As a particular example, we focus on a third-order scissor device and demonstrate advantages in terms of fidelity with the target state, probability of success, distillable entanglement, and the amount of non-Gaussianity introduced.
