University of Ottawa advances ionization control for quantum computing

Researchers at the University of Ottawa have made a significant discovery in the field of physics that could help improve technologies like quantum computing and medical imaging. They developed a new method to control ionization, which is the process of removing electrons from atoms. The study, led by physics professor Ravi Bhardwaj and his team, was published in the journal Nature Communications. They found that using optical vortex beams, which are light beams with a special twisting pattern, allows for better control over ionization. This method is different from the few existing ways to control ionization, which occurs in natural events like lightning and in various technologies. Bhardwaj noted that this discovery could lead to better medical imaging techniques. Current imaging methods are limited by the way light spreads out, but their new approach might enhance spatial resolution. This means clearer images could be achieved, which is important for accurate medical diagnoses. The researchers also mentioned that their method could advance fields like attosecond science, which studies light and matter at very short time scales. Additionally, it could be useful in plasma physics to generate powerful light used in imaging. However, the team does not expect immediate practical applications from their research. They described it as "fundamental research" and are not looking to commercialize it soon. This discovery adds to a series of recent advancements in Canadian quantum research. Other local companies have also reported breakthroughs in quantum technology, and the government has invested substantial funding to support this growing sector.