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Publications

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Preprints

  • H. Yano, M. Kohda, S. Tsutsui, R. Imai, K. Kanno, K. Mitarai and Y.O. Nakagawa,
    Quantum expectation value estimation by doubling the number of qubits.
    (arXiv: 2412.14466)

  • M.Z. Chung, A. Thomasen, H. Liao, and R. Imai,
    Contrasting Statistical Phase Estimation with the Variational Quantum Eigensolver in the era of Early Fault Tolerant Quantum Computation.
    (arXiv: 2409.07749)

  • K. Kanno, M. Kohda, R. Imai, S. Koh, K. Mitarai, W. Mizukami, and Y.O. Nakagawa,
    Quantum-selected configuration interaction: Classical diagonalization of Hamiltonians in subspaces selected by quantum computers.
    (arXiv: 2302.11320)

  • K. Kuroiwa, T. Ohkuma, H. Sato, and R. Imai,
    Quantum Car-Parrinello Molecular Dynamics: A Cost-Efficient Molecular Simulation Method on Near-Term Quantum Computers.
    (arXiv: 2212.11921)

Articles (peer-reviewed journal)

  • M. Kohda, R. Imai, K. Kanno, K. Mitarai, W. Mizukami, Y. O. Nakagawa,
    Quantum expectation value estimation by computational basis sampling,
    Phys. Rev. Research 4, 033173 (2022).
    (arXiv: 2112.07416)

  • Y. Suzuki, Y. Kawase, Y. Masumura, Y. Hiraga, M. Nakadai, J. Chen, K. M. Nakanishi, K. Mitarai, R. Imai, S. Tamiya, T. Yamamoto, T. Yan, T. Kawakubo, Y. O. Nakagawa, Y. Ibe, Y. Zhang, H. Yamashita, H. Yoshimura, A. Hayashi, K. Fujii,
    Qulacs: a fast and versatile quantum circuit simulator for research purpose,
    Quantum 5, 559 (2021).
    (arXiv: 2011.13524)

  • J. Takahashi, R. Imai, E. Nakano, and K. Iida,
    Bose polaron in spherical trap potentials: Spatial structure and quantum depletion,
    Phys. Rev. A 100, 023624 (2019).
    (arXiv: 1904.08799)

  • R. Imai and Y. Yamanaka,
    Dynamical Properties of the Finite-size Dicke Model Coupled to a Thermal Reservoir,
    J. Phys. Soc. Jpn. 88, 024401 (2019).
    (arXiv: 1810.05888)

  • R. Imai and Y. Yamanaka,
    Stability of symmetry breaking states in finite-size Dicke model with photon leakage,
    Phys. Lett. A, 382, 3333 (2018).
    (arXiv: 1801.05954)

Proceedings (peer-reviewed)

Articles (others)