For building ultra-fast and secure quantum networks, quantum information must be stored and transferred reliably across long distances. A quantum register comprising numerous entangled nuclear spins and quantum dots can fulfill this requirement.
It has been challenging to create a scalable and practical quantum register because it requires controlling many qubits together and solving numerous interconnected issues related to their stability, coherence, control, and error correction.
However, a new study impressively solves these challenges. The study authors successfully used 13,000 nuclear spins in a gallium arsenide (GaAs) quantum dot system to create a scalable quantum register.
To read more, click here.