40 citations · 65 across the 11 of their papers we have counts for
12 papers
Circuit growth and subspace read-out in quantum-selected configuration interaction: Separating the Hartree-Fock determinant
Ayaka Fujimoto, Norifumi Matsumoto, Shota Kanasugi +2
Predicting many molecular properties requires accurate ground-state energies of molecular Hamiltonians. Quantum-selected configuration interaction (QSCI) obtains such energies by m…
Idling error suppression through gate scheduling
Hoiki Madison Liu, Kazunori Maruyama, Hirotaka Oshima +1
Achieving high-precision quantum computation requires effective suppression of idling errors that occur when qubits remain inactive during waiting periods within a quantum circuit.…
Enabling Chemically Accurate Quantum Phase Estimation in the Early Fault-Tolerant Regime
Shota Kanasugi, Riki Toshio, Kazunori Maruyama +1
Quantum simulation of molecular electronic structure is one of the most promising applications of quantum computing. However, achieving chemically accurate predictions for strongly…
Mirror subspace diagonalization: A real-time quantum Krylov algorithm with near-optimal sampling cost
Shota Kanasugi, Yuya O. Nakagawa, Norifumi Matsumoto +3
Quantum Krylov algorithms are a promising approach for ground-state energy estimation on near-term quantum computers. However, their sampling cost is inherently high because each H…
Implementation and verification of coherent error suppression using randomized compiling for Grover's algorithm on a trapped-ion device
Masatoshi Ishii, Hammam Qassim, Tomochika Kurita +4
In near-term quantum computations that do not employ fault tolerant error correction, noise can proliferate rapidly, corrupting the quantum state and making results unreliable. The…
Fast-forwardability of Qubit-mapped Fermion models based on Cartan decomposition
Yuichiro Hidaka, Shoichiro Tsutsui, Shota Kanasugi +3
We study the Hamiltonian algebra of qubit-mapped interacting fermion models and their fast-forwardability. We prove that the dimension of the Hamiltonian algebra of the fermion mod…
Quantum many-body simulation of finite-temperature systems with sampling a series expansion of a quantum imaginary-time evolution
Norifumi Matsumoto, Shoichiro Tsutsui, Yuya O. Nakagawa +5
Simulating thermal-equilibrium properties at finite temperature is crucial for studying quantum many-body systems. Quantum computers are expected to enable us to simulate large sys…
Subspace-Based Local Compilation of Variational Quantum Circuits for Large-Scale Quantum Many-Body Simulation
Shota Kanasugi, Yuichiro Hidaka, Yuya O. Nakagawa +5
Simulation of quantum many-body systems is a promising application of quantum computers. However, implementing the time-evolution operator as a quantum circuit efficiently on near-…
Quantum error correction with an Ising machine under circuit-level noise
Jun Fujisaki, Kazunori Maruyama, Hirotaka Oshima +4
Efficient decoding to estimate error locations from outcomes of syndrome measurement is the prerequisite for quantum error correction. Decoding in presence of circuit-level noise i…
Splitting and Parallelizing of Quantum Convolutional Neural Networks for Learning Translationally Symmetric Data
Koki Chinzei, Quoc Hoan Tran, Kazunori Maruyama +2
The quantum convolutional neural network (QCNN) is a promising quantum machine learning (QML) model that is expected to achieve quantum advantages in classically intractable proble…
Computation of Green's function by local variational quantum compilation
Shota Kanasugi, Shoichiro Tsutsui, Yuya O. Nakagawa +3
Computation of the Green's function is crucial to study the properties of quantum many-body systems such as strongly correlated systems. Although the high-precision calculation of…
Partially Fault-tolerant Quantum Computing Architecture with Error-corrected Clifford Gates and Space-time Efficient Analog Rotations
Yutaro Akahoshi, Kazunori Maruyama, Hirotaka Oshima +2
Quantum computers are expected to bring drastic acceleration to several computing tasks against classical computers. Noisy intermediate-scale quantum (NISQ) devices, which have ten…