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

Company noted for building quantum annealers now also making gate-based hardware.

Image of a silvery metallic case surrounding a brown-orange piece of plastic with multiple holes in it.
Image: Ars Technica
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Company noted for building quantum annealers now also making gate-based hardware.

The short version

  • But a few years back, D-Wave started working on gate-based hardware, apparently choosing a somewhat unusual qubit technology called fluxonium .
  • On Wednesday, the company is publishing a paper in Nature that describes a key step in validating this dual-rail technology, showing that two of the qubits can be entangled without altering their best feature: Most are a single type that is easy to detect.
  • The basic structure of a dual-rail qubit depends on making two linked resonators, which we’ll call left and right.

What happened

If you place a single photon in the system and measure it, it will always be in either the left or right resonator. But it’s possible to place that single photon in a superposition of both left and right.

Why it matters

Those are all the features you need to make a qubit.

Summary by Nerd News Network. Read the full article at Ars Technica via the links above and below.

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