Digital-analog quantum computing (DAQC) is an alternative paradigm for universal quantum computation combining digital single-qubit gates with global analog operations acting on a register of interacting qubits. Currently, no available open-source software is tailored to express, differentiate, and execute programs within the DAQC paradigm. In this work, we address this shortfall by presenting Qadence, a high-level programming interface for building complex digital-analog quantum programs developed at Pasqal. Thanks to its flexible interface, native differentiability, and focus on real-device execution, Qadence aims at advancing research on variational quantum algorithms built for native DAQC platforms such as Rydberg atom arrays.

翻译：数字-模拟量子计算（DAQC）是一种通用量子计算的替代范式，它将数字单量子比特门与作用于相互作用量子比特寄存器上的全局模拟操作相结合。目前，尚无现成的开源软件能够针对DAQC范式的程序表达、微分和执行进行专门设计。在本工作中，我们通过介绍Qadence（Pasqal公司开发的一种用于构建复杂数字-模拟量子程序的高级编程接口）来解决这一缺失。凭借其灵活的接口、原生可微性以及对真实设备执行的关注，Qadence旨在推进为原生DAQC平台（如里德伯原子阵列）设计的变分量子算法研究。