Quantum-error correction on linear-nearest-neighbor qubit arrays
Quantum-error correction on linear-nearest-neighbor qubit arrays
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DOI：
10.1103/physreva.69.042314
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发表时间：
2004-04-01
影响因子：
2.9
通讯作者：
Hollenberg, LCL
中科院分区：
文献类型：
--
作者：
Fowler, AG;Hill, CD;Hollenberg, LCL
描述了一种在线性最近邻结构上实现5量子比特量子纠错的量子电路。规范分解用于构造快速且简单的门，其包含必要的交换操作，允许电路实现与当前最小深度电路相同的深度。电路的性能进行离散和连续误差时的模拟。研究了物理量子比特和逻辑量子比特的误码率之间的关系，重点研究了级联纠错阈值的确定。
A quantum circuit implementing 5-qubit quantum-error correction on a linear-nearest-neighbor architecture is described. The canonical decomposition is used to construct fast and simple gates that incorporate the necessary swap operations allowing the circuit to achieve the same depth as the current least depth circuit. Simulations of the circuit's performance when subjected to discrete and continuous errors are presented. The relationship between the error rate of a physical qubit and that of a logical qubit is investigated with emphasis on determining the concatenated error correction threshold.