Baihua: A 100-qubit scale, high-performance, and open-access quantum cloud platform

Abstract

Quantum cloud platforms are of great importance for promoting near-term applications of quantum computing. Here we introduce the fully open-access Baihua platform, featuring 111 high-performance qubits with an average two-qubit control-$Z$ gate fidelity exceeding 98% and a peak fidelity of 99.82%. The platform is implemented on a 156-qubit superconducting processor with heavy-hexagonal-like topology. Since its launch, Baihua has executed over two million quantum tasks, significantly promoting the research and development of hardware-efficient algorithms for practical quantum computing.