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arXiv · 2407.07394

MagicPool: Dealing with Magic State Distillation Failures on Large-Scale Fault-Tolerant Quantum Computer

Yutaka Hirano·Yasunari Suzuki·Keisuke Fujii
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Abstract

Magic state distillation, which is a probabilistic process used to generate magic states, plays an important role in universal fault-tolerant quantum computers. On the other hand, to solve interesting problems, we need to run complex programs on fault-tolerant quantum computers, and hence, the system needs to use hardware resources efficiently. Taking advantage of parallelism is a major optimization strategy and compilers are responsible for performing optimizations to allow parallel processing. However, the probabilistic nature of magic state distillation is not compatible with compile-time optimizations and results in an additional run-time delay. To reduce the additional run-time delay, we propose introducing a pool of magic states. We run simulations of quantum circuits to verify the magnitude of the run-time delay and the usefulness of the mitigation approach. The experimental results show that the run-time delay is amplified by parallel processing, and pooling effectively reduces the run-time delay with a small spatial cost.

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Yutaka Hirano, Yasunari Suzuki, Keisuke Fujii. 2024-07-10. MagicPool: Dealing with Magic State Distillation Failures on Large-Scale Fault-Tolerant Quantum Computer. https://arxiv.org/abs/2407.07394

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