669 citations · 1.7k across the 90 of their papers we have counts for
90 papers
Experimental Measurement and Theoretical Analysis of Energy Relaxation Rates of an Interacting Two-Qubit System on a D-Wave Quantum Annealer
Yusei Amano, Sorato Suzuki, Hiroki Kuji +3
In D-Wave quantum annealers, various properties of the ground state have been clarified, whereas the correspondence between theory and experiment for energy relaxation rates in mul…
Shapiro steps of superfluid Fermi gases in a ring trap across the BCS--BEC crossover
Hikaru Kuriki, Masaya Kunimi, Tetsuro Nikuni
We investigate the transport properties of a superfluid Fermi gas confined in a ring trap with a moving potential barrier across the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstei…
Performance Comparison of QAOA Mixers for Ternary Portfolio Optimization
Shintaro Yamamura, Satoshi Watanabe, Masaya Kunimi +2
The Quantum Approximate Optimization Algorithm (QAOA) is a quantum algorithm proposed for Noisy Intermediate-Scale Quantum (NISQ) devices and is regarded as a promising approach to…
Quantum Error Mitigation Simulates General Non-Hermitian Dynamics
Hiroki Kuji, Suguru Endo, Tetsuro Nikuni +2
While non-Hermitian Hamiltonians enable exotic dynamical phenomena, implementing their nonunitary time evolution on near-term quantum devices remains challenging. We propose a hard…
Construction of asymptotic quantum many-body scar states in the SU() Hubbard model
Daiki Hashimoto, Masaya Kunimi, Tetsuro Nikuni
We construct asymptotic quantum many-body scars (AQMBS) in one-dimensional SU() Hubbard chains () by embedding the scar subspace into an auxiliary Hilbert subspace $\ma…
Hardware-efficient quantum annealing with error mitigation via classical shadow
Takaharu Yoshida, Yuta Shingu, Chihaya Shimada +3
Quantum annealing (QA) is an efficient method for finding the ground-state energy of the problem Hamiltonian. However, in practical implementation, the system suffers from decohere…