# High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables.

@article{Takei2005HighfidelityTB, title={High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables.}, author={Nobuyuki Takei and Hidehiro Yonezawa and Takao Aoki and Akira Furusawa}, journal={Physical review letters}, year={2005}, volume={94 22}, pages={ 220502 } }

We experimentally demonstrate continuous-variable quantum teleportation beyond the no-cloning limit. We teleport a coherent state and achieve the fidelity of 0.70 +/- 0.02 that surpasses the no-cloning limit of 2/3. Surpassing the limit is necessary to transfer the nonclassicality of an input quantum state. By using our high-fidelity teleporter, we demonstrate entanglement swapping, namely, teleportation of quantum entanglement, as an example of transfer of nonclassicality.

## 127 Citations

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- PhysicsOptical Engineering + Applications
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This approach enabled the first realization of deterministic quantum teleportation of photonic qubits without post-selection, and is now aiming at universal, scalable, and fault-tolerant quantum computing based on these hybrid technologies.

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