...AND CHEAPER...:

The researchers used a special type of qubit (the quantum version of a classical computer's bits) called spin qubits to run two different quantum algorithms on a silicon chip.

Other quantum systems, like Intel's breakthrough 49-qubit computer, rely on superconductive materials and near perfect-zero temperatures. A spin qubit doesn't require either, it's an electron that's been agitated by microwave pulses.

While other quantum systems are closer to being useful, the idea here wasn't to create a better computer but one that would work with existing infrastructure. Intel, it's worth mentioning, is the world leader in silicon chip sales.

According to a white paper published by the team:

In this context, quantum-dot-based spin qubits could have substantial advantages over other types of qubit owing to their potential for all-electrical operation and ability to be integrated at high density onto an industrial platform.

These two-qubit systems are merely experimental at this point. The researchers, by running quantum algorithms on the devices, have proven the concept works. It'll take more experimentation to develop systems at the range where they'll be more powerful than regular computers.

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