Quantinuum Increases Their Quantum Volume to 4096

In December, we reported on Quantinuum announcement that they had reached a Quantum Volume metric of 2048 with a new processor they called H1-2. The H1-2 had 12 operational qubits available, but a Quantum Volume of 2048 meant they had successful passed the test specified by IBM with an 11x11 circuit, (Eleven qubits with eleven gate levels in the circuit). Quantinuum has continued to tweak the performance of the H1-2 and has made additional improvements in this processor and they have successful completed the test using a 12x12 circuit for a Quantum Volume of 4096. The company has been able to consistently double their performance on this metric over the past few years and will no doubt work to double it once again in the future. But the challenge for the next step is they will need to do it with a different chip because they have maxed out on the number of available qubits on the H1-2. We expect they are working on an H2 processor with an increased number of raw qubits in their labs and expect that when they announce a Quantum Volume of 8192, it will be with this new design. You can view Quantinuum's announcement with some additional technical details in a press release posted on their website here.

April 14, 2022