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Superconducting qubit that lasts for over 1 millisecond is primed for industrial scaling

Princeton's new quantum chip built for scale
A Princeton team has reported their new qubit lasts for over 1 millisecond, three times longer than the best ever reported in a lab setting, and nearly fifteen times longer than the industry standard for large-scale processors. Credit: Princeton University; Office of Communications; Matt Raspanti (2025)

In a major step toward practical quantum computers, Princeton engineers have built a superconducting qubit that lasts three times longer than today’s best versions.

“The real challenge, the thing that stops us from having useful quantum computers today, is that you build a qubit and the information just doesn’t last very long,” said Andrew Houck, Princeton’s dean of engineering and co-principal investigator. “This is the next big jump forward.”

In an article in the journal Nature,...

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