3 papers
quant-ph2025
Selective Excitation of Superconducting Qubits with a Shared Control Line through Pulse Shaping
Ryo Matsuda, Ryutaro Ohira, Toshi Sumida +16
In conventional architectures of superconducting quantum computers, each qubit is connected to its own control line, leading to a commensurate increase in the number of microwave l…
quant-ph2024
Development of a bipolar 50 V output digital-to-analog converter system for ion-shuttling operations
T. Oshio, R. Nishimoto, T. Higuchi +6
The quantum charge-coupled device (QCCD) is one of the notable architectures to achieve large-scale trapped-ion quantum computers. To realize QCCD architecture, ions must be transp…
cond-mat.mes-hall2018
Frequencies of the Edge-Magnetoplasmon Excitations in Gated Quantum Hall Edges
Akira Endo, Keita Koike, Shingo Katsumoto +1
We have investigated microwave transmission through the edge of quantum Hall systems by employing a coplanar waveguide (CPW) fabricated on the surface of a GaAs/AlGaAs two-dimensio…