Diamond nitrogen-vacancy center positional/ directional alignment offers scalable manufacturing path for solid-state quantum chips

https://phys.org/news/2026-06-growth-enables-2d-arrays-position.html

"placement damages crystal lattice/ qubit orientation random... overcome combining plasma-generated radical etching utilizing hydrogen/ nitrogen gases with photolithography-patterned metal mask carving micro-structures into diamond substrate, followed by continuous chemical vapor deposition... restricts NV center formation to 2D array coordinates, locking most generated qubits into unified, specific crystal orientation without damaging surrounding lattice... room-temperature quantum sensing/ computing"