Universal quantum computation with temporal-mode bilayer square lattices
Universal quantum computation with temporal-mode bilayer square lattices
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DOI：
10.1103/physreva.97.032302
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发表时间：
2017-11
影响因子：
2.9
通讯作者：
R. N. Alexander;S. Yokoyama;A. Furusawa;N. Menicucci
中科院分区：
文献类型：
--
作者：
R. N. Alexander;S. Yokoyama;A. Furusawa;N. Menicucci
我们提出了一种通用连续变量量子计算的实验设计，该设计结合了基于线性光学的连续变量簇状态生成和立方相门隐形传态的最新创新。第一个成分是用于生成具有光时间模式的双层方格簇状态（通用资源状态）的协议。在这种状态下，基于测量的高斯酉门实现仅需要零差检测。其次，我们描述了一种实现自适应立方相门的测量装置，直至随机相空间位移。它需要两步序列的零差测量并消耗（非高斯）立方相状态。
We propose an experimental design for universal continuous-variable quantum computation that incorporates recent innovations in linear-optics-based continuous-variable cluster state generation and cubic-phase gate teleportation. The first ingredient is a protocol for generating the bilayer-square-lattice cluster state (a universal resource state) with temporal modes of light. With this state, measurement-based implementation of Gaussian unitary gates requires only homodyne detection. Second, we describe a measurement device that implements an adaptive cubic-phase gate, up to a random phase-space displacement. It requires a two-step sequence of homodyne measurements and consumes a (non-Gaussian) cubic-phase state.