Science, Space and Technology News 2024
Researchers at Lawrence Berkeley National Laboratory have developed a method using a femtosecond laser and hydrogen doping to create and control qubits in silicon, potentially revolutionizing quantum computing by enabling precise qubit placement and connectivity for scalable quantum networks and the quantum internet. Credit: SciTechDaily.com
The technique could enable scalable quantum computers of the future by building on current silicon-based computing infrastructure. “This could carve out a potential new pathway for industry to overcome challenges in qubit fabrication and quality control,” said principal investigator Thomas Schenkel, head of the Fusion Science & Ion Beam Technology Program in Berkeley Lab’s ATAP Division.
An artistic depiction of a new method to create high-quality color-centers in silicon at specific locations using ultrafast laser pulses . The inset at the top-right shows an experimentally observed optical signal from the qubits, with their structures displayed at the bottom. Credit: Kaushalya Jhuria/Berkeley LabThe researchers learned that processing silicon with a low femtosecond laser intensity in the presence of hydrogen helped to create the Ci color centers.
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