论文标题

优化优化器:量子退火的分解技术

Optimizing the Optimizer: Decomposition Techniques for Quantum Annealing

论文作者

Bass, Gideon, Henderson, Max, Heath, Joshua, Dulny III, Joseph

论文摘要

尽管近年来,量子计算硬件在工业和政府的利益增加的刺激下已经显着发展,但在将这些设备应用于相关的现实世界中的问题时,当前一代量子计算机的规模限制仍然是一个障碍。为了有效利用量子计算的潜在益处,需要采用结合经典和量子计算技术的异质方法。在这项工作中,我们探索了解决多种与行业相关的基准问题的多种异构方法,以了解如何最好地利用当前约束的量子计算机。我们的结果表明:求解器性能高度取决于问题图的结构(大小和边缘密度);与动态搜索问题嵌入的单个固定问题嵌入的重复嵌入是避免计算瓶颈的关键。质量更高的解决方案是由算法产生的,它迭代地传播了解决单个子问题必须在其余的较大问题上的影响。 QBSOLV算法(实现上述技术的实现)目前是及时生产质量解决方案的最先进,以及时生产质量解决方案,以使各种理论和现实世界中的问题太大,无法直接嵌入量子退火设备上。

Although quantum computing hardware has evolved significantly in recent years, spurred by increasing industrial and government interest, the size limitation of current generation quantum computers remains an obstacle when applying these devices to relevant, real-world problems. In order to effectively exploit the potential benefits of quantum computing, heterogeneous approaches that combine both classical and quantum computing techniques are needed. In this work, we explore multiple heterogeneous approaches to solving multiple industry-relevant benchmark problems in order to understand how best to leverage quantum computers given current constraints. Our results indicate: that solver performance is highly dependent on the structure (size and edge density) of the problem graph; that reusing a single fixed problem embedding, as opposed to dynamically searching for problem embeddings, is key to avoiding computational bottlenecks; that solutions of better quality are produced by algorithms that iteratively propagate the influence that solving an individual sub-problem has to the remainder of the larger problem; and that the Qbsolv algorithm (which implements the aforementioned techniques) is, at this time, the state-of-the-art in producing quality solutions, in a timely fashion, to a variety of theoretical and real-world problems too large to directly embed onto a quantum annealing device.

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