France

Ytterbium: Rare Earth; Make QC Networks Commonplace?

French and Swiss research teams have tested varying amplitude and direction of magnetic fields around atoms of the rare earth element, Ytterbium. The teams have found a “magic point” which permits a thousand-fold increase in coherence. Such a discovery helps move along the concept of building quantum computing networks with the aid of quantum repeaters. High-coherence (longevity) is needed to ensure signals sent are alive for the entire distance to the receiver, or the next repeater as the case may be. 

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Creating Rank-and-File Photons; and a Quantum Worforce

A team of scientists from France, Germany, and the U.S., are working to develop techniques and materials to produce “indistinguishable photons”. Doing so would permit greater integration into the current high-speed, light-based, computing infrastructure found throughout the globe. This is a necessity to expanding quantum computing, in a practical sense. Other facets to the research include increasing the quantum workforce: “Ultimately, we hope to draw more researchers into this field” the team commented.

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