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arXiv 1004.4609quant-ph
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超越门数和量子代价的可逆函数综合

Synthesis of Reversible Functions Beyond Gate Count and Quantum Cost

Robert Wille, Mehdi Saeedi, Rolf Drechsler

摘要:

迄今为止,已经提出了许多可逆逻辑和量子逻辑的综合方法。然而,它们中的大多数生成电路相对于简单的度量,即门计数或量子成本。另一方面,为了物理实现可逆和量子硬件,存在额外的约束。在本文中,我们描述了在为各自的目标技术合成可逆和量子逻辑时应该考虑的超出门数和量子成本的成本度量。我们表明,一个综合方法的评价可能会有所不同,如果额外的成本。此外,一个新的成本度量,即最近邻成本(NNC),这是由现实的物理量子体系结构,被详细考虑。我们讨论如何现有的合成流程可以扩展到生成最佳电路相对于NNC,同时仍然保持量子成本小。

英文摘要:

Many synthesis approaches for reversible and quantum logic have been proposed so far. However, most of them generate circuits with respect to simple metrics, i.e. gate count or quantum cost. On the other hand, to physically realize reversible and quantum hardware, additional constraints exist. In this paper, we describe cost metrics beyond gate count and quantum cost that should be considered while synthesizing reversible and quantum logic for the respective target technologies. We show that the evaluation of a synthesis approach may differ if additional costs are applied. In addition, a new cost metric, namely Nearest Neighbor Cost (NNC) which is imposed by realistic physical quantum architectures, is considered in detail. We discuss how existing synthesis flows can be extended to generate optimal circuits with respect to NNC while still keeping the quantum cost small.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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