Quantum Teleportation revolutionizing Data Storage and Computing


Published by the American Physical Society on Dec 04, 2020, a fiber-optic cable network that was built with regular equipment and low-noise superconducting nanowire single-photon detectors, scientists teleported Qubits (Quantum Bits) at a distance of 43.4 Kms with a fidelity rate of more than 90%.

Now this development needs to be translated in developing a quantum internet service that in turn would revolutionize the computing and data storage. This will be the beginning of a new era in quantum communications and networks.

Quantum teleportation is a technique to transfer quantum information from source to destination by employing entangled states. Namely, in quantum teleportation, the entanglement in the Bell state is used to transport an arbitrary quantum state between two distant observers A and B (often called Alice and Bob).

The measurements are performed on the Caltech and Fermilab Quantum Network test beds (CQNET, FQNET), two teleportation systems that have been designed, built, commissioned, and deployed by Caltech’s multidisciplinary multi-institutional public-private research program on Intelligent Quantum Networks and Technologies (IN-Q-NET). IN-Q-NET was jointly founded in 2017 by Caltech, AT&T, Fermi National Accelerator Laboratory, and the Jet Propulsion Laboratory.

These unique quantum network test beds use state-of-the-art solid-state light detectors in a compact fiber-based setup and feature near-autonomous data acquisition, control, monitoring, synchronization, and analysis. The teleportation systems, which are compatible both with existing telecommunication infrastructure and with emerging quantum processing and storage devices, represent a significant milestone towards a practical quantum Internet. These networks are currently being used to improve the fidelity and rate of entanglement distribution, with an emphasis on complex quantum communication protocols and fundamental science.