11 citations · 11 across the 3 of their papers we have counts for
4 papers
QuBE/Qubex: an integrated hardware-software system for superconducting qubit experiments with broadband control
Akinori Machino, Kazuhisa Ogawa, Takefumi Miyoshi +21
Achieving high-fidelity operation in large-scale superconducting qubit systems requires not only control hardware with broad frequency coverage, low crosstalk, and tight synchroniz…
Cryogenic Time-Division-Multiplexed Voltage Control for Scalable Trapped-Ion Quantum Processors
Ryutaro Ohira, Shinichi Morisaka, Yoshinori Kurimoto +4
Trapped-ion quantum computers based on the quantum charge-coupled device architecture require on the order of ten trap electrodes per qubit, making the number of vacuum feedthrough…
Error suppression by a virtual two-qubit gate
Takahiro Yamamoto, Ryutaro Ohira
Sparse connectivity of a superconducting quantum computer results in the large experimental overheads of SWAP gates. In this study, we consider employing a virtual two-qubit gate (…
A Gauss-Newton based Quantum Algorithm for Combinatorial Optimization
Mitsuharu Takeori, Takahiro Yamamoto, Ryutaro Ohira +1
In this work, we present a Gauss-Newton based quantum algorithm (GNQA) for combinatorial optimization problems that, under optimal conditions, rapidly converges towards one of the…