Princeton’s new quantum chip marks a major step toward quantum advantage

A Princeton team built a new tantalum-silicon qubit that survives for over a millisecond, far surpassing today’s best devices. The design tackles surface defects and substrate losses that have limited transmon qubits for years. Easy to integrate into existing quantum chips, the approach could make processors like Google’s vastly more powerful.

source https://www.sciencedaily.com/releases/2025/11/251116105622.htm