A new quantum computer breaks Google's quantum supremacy record by 100-fold
How does Quantinuum's logical circuit error rate compare to physical ones?
Quantinuum's logical circuit error rate is up to 800 times lower than corresponding physical circuit error rates. This significant improvement, achieved through the creation of four highly reliable logical qubits from 30 physical qubits, represents a major step towards fault-tolerant quantum computing5.
What is Google's Sycamore quantum computer's achievement in 2019?
In 2019, Google's Sycamore quantum computer achieved a quantum supremacy record by completing a specific task in 200 seconds that would have taken a classical supercomputer 10,000 years to finish2. This milestone demonstrated the potential of quantum computing for performing complex calculations exponentially faster than classical computers.
How did Quantinuum's H2-1 computer surpass Google's record?
Quantinuum's H2-1 computer surpassed Google's record by achieving a 100-fold improvement in quantum supremacy. The H2-1 configured with 32 physical qubits supported the creation of four highly reliable logical qubits operating at "better than break-even," representing a major step towards fault-tolerant quantum computing1. It achieved an estimated linear cross entropy benchmark (XEB) score of ~0.35, over 100 times better than previous demonstrations.