Temporal-mode continuous-variable three-dimensional cluster state for topologically protected measurement-based quantum computation
Temporal-mode continuous-variable three-dimensional cluster state for topologically protected measurement-based quantum computation
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DOI：
10.1103/physreva.102.032614
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发表时间：
2020-04
影响因子：
2.9
通讯作者：
Kosuke Fukui;W. Asavanant;A. Furusawa
中科院分区：
文献类型：
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作者：
Kosuke Fukui;W. Asavanant;A. Furusawa
具有连续变量的基于测量的量子计算显示了实现大规模量子计算的巨大前景，其中，时间域多路复用方法使我们能够产生用于执行基于测量的量子计算的大规模簇态。为了有效地利用时间域多路复用方法的优势，本文提出了一种生成大规模三维簇态的方法，为基于拓扑保护的测量量子计算提供了平台。我们的方法结合了时间域多路复用方法和分治方法，在实现大规模量子计算方面具有两个优点。首先，验证三维团簇纠缠的压缩能级在实验上是可行的。第二个优点是在拓扑保护的基于测量的量子计算中，对连续变量的有限压缩产生的模拟误差具有稳健性。因此，我们的方法是实现大规模连续变量量子计算的一种很有前途的方法。
Measurement-based quantum computation with continuous variables in an optical setup shows the great promise towards implementation of large-scale quantum computation, where the time-domain multiplexing approach enables us to generate the large-scale cluster state used to perform measurement-based quantum computation. To make effective use of the advantage of the time-domain multiplexing approach, in this paper, we propose the method to generate the large-scale 3-dimensional cluster state which is a platform for topologically protected measurement-based quantum computation. Our method combines a time-domain multiplexing approach with a divide-and-conquer approach, and has the two advantages for implementing large-scale quantum computation. First, the squeezing level for verification of the entanglement of the 3-dimensional cluster states is experimentally feasible. The second advantage is the robustness against analog errors derived from the finite squeezing of continuous variables during topologically-protected measurement-based quantum computation. Therefore, our method is a promising approach to implement large-scale quantum computation with continuous variables.