Experimental teleportation of a quantum controlled-NOT gate

被引：144

作者：

Huang, YF ^{[1
]}

Ren, XF

Zhang, YS

Duan, LM

Guo, GC

机构：

[1] Univ Sci & Technol China, Lab Quantum Informat, Hefei 230026, Anhui, Peoples R China

[2] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[3] Univ Michigan, FOCUS Ctr, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 24期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevLett.93.240501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Teleportation of quantum gates is a critical step for the implementation of quantum networking and teleportation-based models of quantum computation. We report an experimental demonstration of teleportation of the prototypical quantum controlled-NOT (CNOT) gate. Assisted with linear optical manipulations, photon entanglement produced from parametric down-conversion, and postselection from the coincidence measurements, we teleport the quantum CNOT gate from acting on local qubits to acting on remote qubits. The quality of the quantum gate teleportation is characterized through the method of quantum process tomography, with an average fidelity of 0.84 demonstrated for the teleported gate.

引用

页数：4

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