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arXiv 0905.2103quant-phmath-phmath.MP
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四光子六量子比特团簇态受控非门的实验实现

Experimental Realization of a Controlled-NOT Gate with Four-Photon Six-Qubit Cluster States

Wei-Bo Gao, Ping Xu, Xing-Can Yao, Otfried Gühne, Adán Cabello, Chao-Yang Lu, Cheng-Zhi Peng, Zeng-Bing Chen, Jian-Wei Pan

摘要:

我们实验证明了一个基于4光子6量子比特团簇态的任意单输入的光控非(CNOT)门。我们首先生成6个量子比特的状态,然后通过执行单量子比特测量,将CNOT门应用于任意单输入量子比特。为了表征门的性能,我们估计了它的量子过程保真度,并证明了它的纠缠能力。结果表明,局部操作和经典通信都不能再现该门。我们的实验表明,团簇态是有效的光量子计算的有希望的候选者。

英文摘要:

We experimentally demonstrate an optical controlled-NOT (CNOT) gate with arbitrary single inputs based on a 4-photon 6-qubit cluster state entangled both in polarization and spatial modes. We first generate the 6-qubit state, and then by performing single-qubit measurements the CNOT gate is applied to arbitrary single input qubits. To characterize the performance of the gate, we estimate its quantum process fidelity and prove its entangling capability. The results show that the gate cannot be reproduced by local operations and classical communication. Our experiment shows that cluster states are promising candidates for efficient optical quantum computation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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