4 stories
Show: Summaries / Headlines only
On one cross-platform benchmark, Google's Willow ran about 66,000 times as many operations per second as Quantinuum's Helios-1, and Helios-1 ran circuits about seven times as large. Each vendor headlines the axis it leads on.
Quantinuum has reported logical-qubit counts of 94, 50, 48, and one on the same machine with 98 physical qubits, from four different experiments. With five questions, a reader can tell what most such announcements demonstrated.
QuEra sells neutral-atom machines with 256 and 260 physical qubits, while Harvard and MIT teams that include its co-founders have run arrays of more than 3,000 atoms. Its Libra computer, due in 2028, is the test.
QuEra said Libra will be available on Amazon Braket starting in 2028 and called the machine's specifications projected. Neither QuEra's release nor AWS's blog post gave the number of physical qubits the neutral-atom machine will use.
