Photonic implementation for the topological cluster-state quantum computer
Photonic implementation for the topological cluster-state quantum computer
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DOI：
10.1103/physreva.82.032332
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发表时间：
2010-05
影响因子：
2.9
通讯作者：
David A. Herrera-Mart'i;A. Fowler;D. Jennings;T. Rudolph
中科院分区：
文献类型：
--
作者：
David A. Herrera-Mart'i;A. Fowler;D. Jennings;T. Rudolph
提出了一种拓扑簇态量子计算机的实现方案，其基本元素是线性光学、测量和二维量子点阵列。这就克服了非线性器件产生纠缠光子晶格的需要。尽管计算误差的阈值相当令人满意（高于10{sup-3}），但检测器和量子点所需的最低效率的估计超出了当前技术的范围。这是因为我们严重依赖于概率纠缠门，这会在方案中引入损失，而不管探测器和量子点的效率如何。
An implementation of the topological cluster-state quantum computer is suggested, in which the basic elements are linear optics, measurements, and a two-dimensional array of quantum dots. This overcomes the need for nonlinear devices to create a lattice of entangled photons. Whereas the thresholds found for computational errors are quite satisfactory (above 10{sup -3}), the estimates of the minimum efficiencies needed for the detectors and quantum dots are beyond current technology's reach. This is because we rely heavily on probabilistic entangling gates, which introduces loss into the scheme irrespective of detector and quantum-dot efficiencies.