New type of register using atoms inside a semiconductor quantum dot, with thousands of entangled nuclei to scale quantum networks

https://phys.org/news/2025-01-scientists-register-thousands-entangled-nuclei.html#google_vignette

"stable, versatile optically connected qubits... many-body quantum register storing information locally over extended periods... 13K nuclear spin dark state collective with better coherence/ stability serving as 0 state of quantum register, 1 state as single nuclear magnon excitation single nuclear spin flip... nearly 69% storage fidelity, >130 ms coherence... polarizes nuclear spins in gallium arsenide QDs... applying quantum feedback overcoming uncontrolled nuclear magnetic interactions... communication, distributed computing"