Defect utilization in quantum materials

Defect centers in diamond have opened new directions in nanoscale nuclear magnetic resonance (NMR), single molecule detection, and fault-tolerant quantum processing. Remarkably, all of these demonstrations have been achieved with a small subset of possible color centers in diamond, namely nitrogen- and silicon-vacancy, typically introduced through destructive ion implantation techniques that typically suffer from spin bath-limited coherence times and poor charge state stability. The next tier of scientific and technological advancements will be enabled by new defects in diamond and emerging quantum materials that exhibit longer coherence times, more stable emission properties, and can be placed with higher precision near target sources.

QUEST Lab is designing quantum materials and devices from the bottom-up, using custom physical and chemical vapor based growth techniques. These materials are integrated into semiconductor and quantum devices to explore new questions in semiconductor physics.