Quantum Computer Fingerprinting using Error Syndromes

• URL: http://arxiv.org/abs/2506.16614v1
• Date: Thu, 19 Jun 2025 21:23:08 GMT
• Title: Quantum Computer Fingerprinting using Error Syndromes
• Authors: Vincent Mutolo, Devon Campbell, Quinn Manning, Henri Witold Dubourg, Ruibin Lyu, Simha Sethumadhavan, Daniel Rubenstein, Salvatore Stolfo,
• Abstract summary: We propose a strategy to leverage the byproducts of quantum error correction (QEC) to verify hardware identity and authenticate quantum computations for free''<n>By treating syndrome measurements as a source of metadata, we embed verification seamlessly into standard QEC protocols.<n>We validate our approach using multiple error-correcting codes, quantum states, and circuit compilation strategies on several generations of IBM quantum computers.
• Score: 2.680132607018545
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: As quantum computing matures and moves toward broader accessibility through cloud-based platforms, ensuring the authenticity and integrity of quantum computations becomes an urgent concern. In this work, we propose a strategy to leverage the byproducts of quantum error correction (QEC) to verify hardware identity and authenticate quantum computations for ``free'', without introducing any additional quantum computations or measurements. By treating syndrome measurements as a source of metadata, we embed verification seamlessly into standard QEC protocols and eliminate the need for separate challenge-response pairs. We validate our approach using multiple error-correcting codes, quantum states, and circuit compilation strategies on several generations of IBM quantum computers. Our classifiers achieve 99\% accuracy with only 500 shots in distinguishing among five backends. Overall, we re-purpose the intrinsic overhead of error correction to be a mechanism for securing quantum computation.

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