As a crossover frontier of physics and mechanics, quantum computing is showing its great potential in computational mechanics. However, quantum hardware noise remains a critical barrier to achieving accurate simulation results due to the limitation of the current hardware level. In this paper, we integrate error-mitigated quantum computing in data-driven computational mechanics, where the zero-noise extrapolation (ZNE) technique is employed to improve the accuracy of quantum computing. Numerical examples including multiscale simulation of a composite L-shaped beam are conducted with the quantum computer simulator Qpanda, and the results validate the effectiveness of the proposed method. We believe this work presents a promising step towards using the power of quantum computing in computational mechanics.
翻译:作为物理学与力学的交叉前沿,量子计算在计算力学领域展现出巨大潜力。然而,受限于当前硬件水平,量子硬件噪声仍是实现精确仿真结果的关键障碍。本文在数据驱动计算力学中集成带误差缓解的量子计算,采用零噪声外推(ZNE)技术提升量子计算精度。通过量子计算机模拟器Qpanda开展数值算例(包括复合材料L形梁的多尺度仿真),验证了所提方法的有效性。我们相信,该工作为利用量子计算在计算力学领域的强大能力迈出了富有前景的一步。