论文标题
非高斯光子量子态生成的多重合成器
A multiplexed synthesizer for non-Gaussian photonic quantum state generation
论文作者
论文摘要
对于具有非经典光子统计的光子状态，处理简单有效的源对于实施量子计算和通信协议至关重要。在这项工作中，我们提出了一种创新的方法，与以前的提案相比，通过利用现代量子光子学工具提供的多重功能，可以大大简化非高斯州的制备。我们的建议灵感来自迭代方案，其中将多个资源又一个接一个地组合在一起，以获得高振幅复杂的输出状态。相反，在这里，协议的很大一部分是通过沿着与所有输入模式部分重叠的模式进行单个投影测量并并行执行的。我们表明，我们的协议可用于生成高质量和高振幅schrödinger猫状态以及更复杂的状态，例如错误校正代码。值得注意的是，我们的建议可以通过实验可用的资源来实施，突出了其简单的可行性。
Disposing of simple and efficient sources for photonic states with non-classical photon statistics is of paramount importance for implementing quantum computation and communication protocols. In this work, we propose an innovative approach that drastically simplifies the preparation of non-Gaussian states as compared to previous proposals, by taking advantage from the multiplexing capabilities offered by modern quantum photonics tools. Our proposal is inspired by iterative protocols, where multiple resources are combined one after the other for obtaining high-amplitude complex output states. Here, conversely, a large part of the protocol is performed in parallel, by using a single projective measurement along a mode which partially overlaps with all the input modes. We show that our protocol can be used to generate high-quality and high-amplitude Schrödinger cat states as well as more complex states such as error-correcting codes. Remarkably, our proposal can be implemented with experimentally available resources, highlighting its straightforward feasibility.
