D-Wave shows off its new entry in quantum computing race

D-Wave, a company established in a previous era, initially did not produce quantum computers akin to those being developed by IBM or Google. Instead, the firm created a quantum annealer, a device designed not for general-purpose use but capable of addressing a broad spectrum of optimization challenges. Although the hardware shares some parallels with qubits employed in gate-based quantum computers, it functions in a fundamentally distinct manner.

A few years ago, D-Wave began concentrating on gate-based hardware, opting for an unconventional qubit technology known as fluxonium. This year, the company acquired a startup named Quantum Circuits, which had emerged from Yale University. This acquisition involves a dual-rail qubit technology, akin to the one utilized by Amazon, which is anticipated to facilitate the easy detection of most errors, thereby simplifying error correction processes.

On Wednesday, D-Wave is set to publish a paper in Nature that outlines a crucial stage in verifying this dual-rail technology, demonstrating that two qubits can be entangled without impacting their key advantage: Most qubits possess a single type that is readily detectable.