论文标题
确定性和通用量子挤压门是根据传送样协议
Deterministic and universal quantum squeezing gate in virtue of teleportation-like protocol
论文作者
论文摘要
挤压转换是必不可少的组成部分,导致有可能执行各种量子信息处理任务。但是,迄今为止,报道的挤压门是有条件的实现,牺牲了成功概率低,而确定性的挤压门的性能目前则由有限的非经典Ancilla的挤压程度限制。为了解决这个问题,我们开发并演示了一种新的确定性和通用量子挤压门的方案,其非本地操作的属性归因于传送型式协议。即使目标挤压水平高达10 dB,我们也证明了高富达挤压操作,即直接观察到具有非古典噪声降低6.5 dB的挤压状态。此外,我们执行高保真复合物的操作,包括傅立叶变换和相挤压门,探索使用列出的功能单元实现量子信息处理的复杂任务的潜力。我们的方法可以应用于分布式量子处理器,外来非古典状态的创建和量子误差校正。
Squeezing transformation as an essential component, gives rise to the possibility to perform various tasks of quantum information processing. However, the reported squeezing gate with best performance so far is a conditional realization at the expense of low success probability, while the performance of the deterministic ones is currently circumscribed by the limited squeezing degree of the non-classical ancilla. To address this issue, we develop and demonstrate a new scheme of deterministic and universal quantum squeezing gate with the property of non-local operation attributed to the teleportation-like protocol. We demonstrate high fidelity squeezing operation, even when the level of target squeezing being up to 10 dB, where a squeezed state with non-classical noise reduction of 6.5 dB is directly observed. Moreover, we perform a high-fidelity complex operation including a Fourier transformation and a phase squeezing gate, exploring the potential of implementing the complex task of quantum information processing with the presented functional unit. Our method can be applied to distributed quantum processor, the creation of exotic non-classical states, and quantum error correction.