3 papers
cond-mat.mes-hall2025
Device/circuit simulations of silicon spin qubits based on a gate-all-around transistor
Tetsufumi Tanamoto, Keiji Ono
We theoretically investigated the readout process of a spin--qubit structure based on a gate-all-around (GAA) transistor. Our study focuses on a logical qubit composed of two physi…
quant-ph2025
Circuit simulation of readout process toward large-scale superconducting quantum circuits
Tetsufumi Tanamoto, Hiroshi Fuketa, Toyofumi Ishikawa +1
The rapid scaling of superconducting quantum computers has highlighted the impact of device-level variability on overall circuit fidelity. In particular, fabrication-induced fluctu…
cond-mat.mes-hall2025
Effects of valley splitting on resonant-tunneling readout of spin qubits
Tetsufumi Tanamoto, Keiji Ono
The effect of valley splitting on the readout of qubit states is theoretically investigated in a three-quantum-dot (QD) system. A single unit of the three-QD system consists of qub…