Magic state cultivation on a superconducting quantum processor

• URL: http://arxiv.org/abs/2512.13908v1
• Date: Mon, 15 Dec 2025 21:29:40 GMT
• Title: Magic state cultivation on a superconducting quantum processor
• Abstract summary: We present an experimental study of magic state cultivation on a superconducting quantum processor.<n>Cultivation reduces the error by a factor of 40, with a state fidelity of 0.9999(1).
• Score: 108.15404500422814
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Fault-tolerant quantum computing requires a universal gate set, but the necessary non-Clifford gates represent a significant resource cost for most quantum error correction architectures. Magic state cultivation offers an efficient alternative to resource-intensive distillation protocols; however, testing the proposal's assumptions represents a challenging departure from quantum memory experiments. We present an experimental study of magic state cultivation on a superconducting quantum processor. We implement cultivation, including code-switching into a surface code, and develop a fault-tolerant measurement protocol to bound the magic state fidelity. Cultivation reduces the error by a factor of 40, with a state fidelity of 0.9999(1) (retaining 8% of attempts). Our results experimentally establish magic state cultivation as a viable solution to one of quantum computing's most significant challenges.

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