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[Author] Ikko HAMAMURA(1hit)

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  • Enhancing VQE Convergence for Optimization Problems with Problem-Specific Parameterized Quantum Circuits

    Atsushi MATSUO  Yudai SUZUKI  Ikko HAMAMURA  Shigeru YAMASHITA  

     
    PAPER-Fundamentals of Information Systems

      Pubricized:
    2023/08/17
      Vol:
    E106-D No:11
      Page(s):
    1772-1782

    The Variational Quantum Eigensolver (VQE) algorithm is gaining interest for its potential use in near-term quantum devices. In the VQE algorithm, parameterized quantum circuits (PQCs) are employed to prepare quantum states, which are then utilized to compute the expectation value of a given Hamiltonian. Designing efficient PQCs is crucial for improving convergence speed. In this study, we introduce problem-specific PQCs tailored for optimization problems by dynamically generating PQCs that incorporate problem constraints. This approach reduces a search space by focusing on unitary transformations that benefit the VQE algorithm, and accelerate convergence. Our experimental results demonstrate that the convergence speed of our proposed PQCs outperforms state-of-the-art PQCs, highlighting the potential of problem-specific PQCs in optimization problems.