Rigetti pronounces 80 qubit processor, experiments with “qutrits”

Image of a golden colored square with lots of attachment points for cables.

Enlarge / The Aspen-M 40-qubit chip and its housing. (credit score: Rigetti)

On Wednesday, quantum computing startup Rigetti introduced a variety of fascinating {hardware} developments. To start with, its customers now have entry to its next-generation chip, referred to as Aspen-M, which gives 40 qubits and improved efficiency. Whereas that is effectively under the qubit rely achieved by IBM, the corporate additionally hints at a manner it might keep aggressive: personal testers will now have entry to an 80 qubit model achieved by linking two of those chips collectively.

Individually, the corporate says that it’s now experimenting with permitting testers to entry a 3rd power state in its superconducting {hardware}, changing its qubits into “qutrits.” If these qutrits present constant habits, they’d enable for the manipulation of considerably extra knowledge in current {hardware}.

New and improved

For conventional processors, advances are usually measured in clock velocity, core rely, and power use. For quantum computer systems, one of the crucial important measures is error charge, because the qubits lose monitor of their state in a manner that digital {hardware} would not. With Aspen-M, Rigetti is claiming {that a} particular kind of error—the readout of the state of the qubit—has been lower in half.

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