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.

In a November 5 article in the journal Nature, the Princeton team reported their new qubit lasts for over 1 millisecond. This is 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. The researchers built a fully functioning quantum chip based on this qubit to validate its performance, solving one of the key obstacles to efficient error correction and scalability for industrial systems.

The new qubit design is similar to those already used by leading companies like Google and IBM, and could easily be slotted into existing processors, according to the researchers. Swapping Princeton’s components into Google’s best quantum processor, called Willow, would enable it to work 1,000 times better, Houck said. The benefits of the Princeton qubit grow exponentially as system size grows, so adding more qubits would bring even greater benefit.
Learn more about “the next big jump forward” in quantum computing: https://bit.ly/47raLEG

Tags: princeton unversity, princeton, princeton nj, quantum computing