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arXiv · 1903.10881

Demonstration of quantum controlled teleportation for discrete variables on linear optical devices

Artur Barasiński·Antonín Černoch·Karel Lemr
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Abstract

We report an experimental implementation of tripartite controlled quantum teleportation on the quantum optical devices. The protocol is performed through bi- and tripartite entangled channels of discrete variables and qubits encoded in polarization of individual photons. The experimental results demonstrate successful controlled quantum teleportation with a fidelity around $83\%$, well above the classical limit. By realizing the controlled quantum teleportation through biseparable state, we show that tripartite entangled is not a necessary resource for controlled quantum teleportation and the controller's capability to allow or prohibit the teleportation cannot be considered to be a manifestation of tripartite entanglement. These results open new possibilities for further application of controlled quantum teleportation by lowering teleportation channel's requirements.

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Artur Barasiński, Antonín Černoch, Karel Lemr. 2019-03-26. Demonstration of quantum controlled teleportation for discrete variables on linear optical devices. https://arxiv.org/abs/1903.10881

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