Significant new discovery in teleportation research: Noise can improve the quality of quantum teleportation

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Researchers have succeeded in conducting an almost perfect quantum teleportation despite the presence of noise that usually disrupts the transfer of quantum state. The results have been published in the journal Science Advances.

In teleportation, the state of a quantum particle, or qubit, is transferred from one location to another without sending the particle itself. This transfer requires quantum resources, such as entanglement between an additional pair of qubits.

Researchers from the University of Turku, Finland, and the University of Science and Technology of China, Hefei, have now proposed a theoretical idea and made corresponding experiments to overcome this problem. In other words, the new approach enables reaching high-quality teleportation despite the presence of noise.

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“The work is based on an idea of distributing entanglement—prior to running the teleportation protocol—beyond the used qubits, i.e., exploiting the hybrid entanglement between different physical degrees of freedom,” says Professor Jyrki Piilo from the University of Turku.

Conventionally, the polarization of photons has been used for the entanglement of qubits in teleportation, while the current approach exploits the hybrid entanglement between the photons’ polarization and frequency.

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The results of the current study can be considered as basic research that carries significant fundamental importance and opens intriguing pathways for future work to extend the approach to general types of noise sources and other quantum protocols.

www.msn.com/en-us/news/technology/significant-new-discovery-in-teleportation-research-noise-can-improve-the-quality-of-quantum-teleportation/ar-AA1o2rXy?ocid=msedgntp&pc=U531&cvid=c01534ecd1164937843fd4e4c132df79&ei=13

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