We improve the quality of quantum circuits on superconducting quantum computing systems, as measured by the quantum volume (QV), with a combination of dynamical decoupling, compiler optimizations, shorter two-qubit gates, and excited state promoted readout. This result shows that the path to larger QV systems requires the simultaneous increase of coherence, control gate fidelities, measurement fidelities, and smarter software which takes into account hardware details, thereby demonstrating the need to continue to co-design the software and hardware stack for the foreseeable future.

中文翻译：

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在超导量子计算系统上演示量子体积 64

我们通过动态解耦、编译器优化、更短的两个量子位门和激发态促进读出的组合，提高了超导量子计算系统上量子电路的质量，以量子体积 (QV) 衡量。该结果表明，通向更大 QV 系统的路径需要同时增加一致性、控制门保真度、测量保真度和考虑硬件细节的更智能的软件，从而证明需要继续共同设计软件和硬件堆栈以实现可预见的未来。