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Long-lived storage of a photonic qubit for worldwide teleportation

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor Gerhard Rempe at the Max Planck Institute of Quantum Optics (MPQ) have now achieved a major breakthrough: they demonstrated the long-lived storage of a photonic qubit on a single atom trapped in an optical resonator. The coherence time of the stored quantum bit outlasts 100 milliseconds and therefore matches the requirement for the creation of a global quantum network in which qubits are directly teleported between end nodes. “The coherence times that we achieve represent an improvement by two orders of magnitude compared to the current state-of-the-art,” says Professor Rempe. The study is published in Nature Photonics today.

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Complete design of a silicon quantum computer chip unveiled

Research teams all over the world are exploring different ways to design a working computing chip that can integrate quantum interactions. Now, UNSW engineers believe they have cracked the problem, reimagining the silicon microprocessors we know to create a complete design for a quantum computer chip that can be manufactured using mostly standard industry processes and components.

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Russian, US Scientists Team Up to Create World’s Most Advanced Quantum Computer

A team of Russian and American scientists at Harvard University has created and tested the world’s first 51 qubit quantum computer. Mikhail Lukin, the co-founder of the Russian Quantum Center, says the new system’s capabilities make it easily the most complex computing machine of its kind.

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Russian, US Scientists Team Up to Create World's Most Advanced Quantum Computer

A team of Russian and American scientists at Harvard University has created and tested the world’s first 51 qubit quantum computer. Mikhail Lukin, the co-founder of the Russian Quantum Center, says the new system’s capabilities make it easily the most complex computing machine of its kind.