Experimental Teleportation of a Quantum Controlled-NOT Gate

Details Experimental Teleportation of a Quantum Controlled-NOT Gate Experimental Teleportation of a Quantum Controlled-NOT Gate

2004-08-02

arxiv.org/abs/quant-ph/0408007v1

Physics

Quantum Physics

4 figures

Scientific paper

10.1103/PhysRevLett.93.240501

Teleportation of quantum gates is a critical step for 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 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.

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