PPPL Scientist Speeds Diamond Qubit Search With 16-to-30-Atom Model
Updated
Updated · ScienceDaily · Nov 15
PPPL Scientist Speeds Diamond Qubit Search With 16-to-30-Atom Model
3 articles · Updated · ScienceDaily · Nov 15
Summary
A new PPPL method models diamond defects as tiny 16-to-30-atom molecular clusters, sharply cutting the computing cost of predicting qubit behavior while preserving accuracy.
Mark Martirez developed the approach to bypass simulations of much larger diamond structures, letting researchers assess how candidate qubits respond to laser light and microwave pulses far faster.
Using the technique, the team identified boron- and oxygen-based defects as promising room-temperature qubit candidates, alongside the better-known nitrogen-vacancy center.
Those new defects emit different colors—ultraviolet for boron and blue for oxygen—raising the prospect of multi-qubit devices in which one qubit type can be probed without disturbing another.
The work, published in ACS Central Science, points to a broader chemistry-led route to designing solid-state qubits for quantum computing, sensing, and eventually better molecular modeling.