Single parallel logic gate entangles an electron with three carbon nuclei in diamond qubits 10X faster at room temperature

https://phys.org/news/2026-09-parallel-gate-entangles-diamond-qubits.html

"part of multi-qubit parallel gate entangling 4 qubits in 14.8 μs, leveraging natural interactions between: nitrogen-vacancy center electron spin/ 3 surrounding carbon-13 nuclear spins... replaces sequential 2-qubit operations with single targeted pulse... boosts gate fidelity from 0.69 to 0.92... operating near hyperfine interaction frequencies' physical limit, generalizable protocol avoids need for bulky cryogenic cooling... scalable quantum sensing, compact memory, fault-tolerant solid-state quantum processors"