Circuit structure-preserving error mitigation for High-Fidelity Quantum Simulations

• URL: http://arxiv.org/abs/2505.17187v1
• Date: Thu, 22 May 2025 18:00:03 GMT
• Title: Circuit structure-preserving error mitigation for High-Fidelity Quantum Simulations
• Authors: Ruizhe Shen, Tianqi Chen, Ching Hua Lee,
• Abstract summary: We present a circuit structure-preserving error mitigation framework for parameterized quantum circuits.<n>A key advantage of our approach lies in its ability to retain the original circuit architecture while effectively characterizing and mitigating gate errors.<n>Our strategy offers a practical solution for addressing gate-induced errors and significantly broadens the scope of feasible quantum simulations on current quantum hardware.
• Score: 5.186385511113478
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: Developing methods to accurately characterize and mitigate the impact of noise is crucial for enhancing the fidelity of quantum simulations on Noisy Intermediate-Scale Quantum (NISQ) devices. In this work, we present a circuit structure-preserving error mitigation framework for parameterized quantum circuits. A key advantage of our approach lies in its ability to retain the original circuit architecture while effectively characterizing and mitigating gate errors, enabling robust and high-fidelity simulations. To demonstrate the effectiveness of our method, we perform variational quantum simulations of a non-Hermitian ferromagnetic transverse-field Ising chain on IBM Quantum processors. The mitigated result shows excellent agreement with exact theoretical predictions across a range of noise levels. Our strategy offers a practical solution for addressing gate-induced errors and significantly broadens the scope of feasible quantum simulations on current quantum hardware.

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