Femtosecond Lasers Spearhead the Quantum Computing Revolution

Berkeley Lab’s new technique uses femtosecond lasers and hydrogen to precisely create qubits in silicon, advancing prospects for scalable quantum computing and networks.

Berkeley Lab researchers have reported a major advancement that could bring us closer to a scalable quantum computer.
Using a femtosecond laser during experiments exploring the role of hydrogen in qubit formation, the researchers developed a method that programs the formation of telecom-band optical qubits in silicon for large-scale manufacturing.
The technique could enable scalable quantum computers of the future by building on current silicon-based computing infrastructure.