22 citations · 55 across the 13 of their papers we have counts for
14 papers
Automated Spin Readout Signal Analysis Using U-Net with Variable-Length Traces and Experimental Noise
Yui Muto, Motoya Shinozaki, Hideaki Yuta +5
Single-shot spin-state discrimination is essential for semiconductor spin qubits, but conventional threshold-based analysis of spin readout traces becomes unreliable under noisy co…
Perfect impedance matching unlocks sensitive radio-frequency reflectometry in 2D material quantum dots
Motoya Shinozaki, Akitomi Shirachi, Yuta Kera +7
Two-dimensional (2D) materials are attractive platforms for realizing high-performance quantum bits (qubits). However, radio-frequency (RF) charge detection, which is a key techniq…
Quantum dot transistors based on CVD-grown graphene nano islands
Takumi Seo, Motoya Shinozaki, Akiko Tada +8
Graphene nanoislands (GNIs) are one of the promising building blocks for quantum devices owing to their unique potential. However, direct electrical measurements of GNIs have been…
On-chip calibrated radio-frequency measurement at cryogenic temperatures for determination of SrTiO3-based capacitor properties
Akitomi Shirachi, Motoya Shinozaki, Yasuhide Tomioka +7
Quantum computing has emerged as a promising technology for next-generation information processing, utilizing semiconductor quantum dots as one of the candidates for quantum bits.…
Formation of multiple quantum dots in ZnO heterostructures
Koichi Baba, Kosuke Noro, Yusuke Kozuka +4
In recent years, advancements in semiconductor manufacturing technology have enabled the formation of high-quality, high-mobility two-dimensional electron gases in zinc oxide (ZnO)…
RFSoC-based radio-frequency reflectometry in gate-defined bilayer graphene quantum devices
Motoya Shinozaki, Tomoya Johmen, Aruto Hosaka +8
Quantum computers require both scalability and high performance for practical applications. While semiconductor quantum dots are promising candidates for quantum bits, the complexi…
Automatic detection of single-electron regime of quantum dots and definition of virtual gates using U-Net and clustering
Yui Muto, Michael R. Zielewski, Motoya Shinozaki +2
To realize practical quantum computers, a large number of quantum bits (qubits) will be required. Semiconductor spin qubits offer advantages such as high scalability and compatibil…
Charge sensing of few-electron ZnO double quantum dots probed by radio-frequency reflectometry
Kosuke Noro, Motoya Shinozaki, Yusuke Kozuka +6
Zinc oxide (ZnO) has garnered much attention as a promising material for quantum devices due to its unique characteristics. To utilize the potential of ZnO for quantum devices, the…
Probing electron trapping by current collapse in GaN/AlGaN FETs utilizing quantum transport characteristics
Takaya Abe, Motoya Shinozaki, Kazuma Matsumura +6
GaN is expected to be a key material for next-generation electronics due to its interesting properties. However, the current collapse poses a challenge to the application of GaN FE…
Charge state estimation in quantum dots using a Bayesian approach
Motoya Shinozaki, Yui Muto, Takahito Kitada +1
Detection of single-electron charges in solid-state nanodevices is a key technique in semiconductor quantum bit readout for quantum information processing and probing electronic pr…
Lattice-guided growth of dense arrays of aligned transition metal dichalcogenide nanoribbons with high catalytic reactivity
Zongpeng Ma, Pablo Solís-Fernández, Kaito Hirata +15
Transition metal dichalcogenides (TMDs) exhibit unique properties and potential applications when reduced to one-dimensional (1D) nanoribbons (NRs), owing to quantum confinement an…
Microwave dependent quantum transport characteristics in GaN/AlGaN FETs
Motoya Shinozaki, Takaya Abe, Kazuma Matsumura +3
Defects in semiconductors, traditionally seen as detrimental to electronic device performance, have emerged as potential assets in quantum technologies due to their unique quantum…
Kondo effect in electrostatically defined ZnO quantum dots
Kosuke Noro, Yusuke Kozuka, Kazuma Matsumura +5
Quantum devices such as spin qubits have been extensively investigated in electrostatically confined quantum dots using high-quality semiconductor heterostructures like GaAs and Si…
Formation of quantum dots in GaN/AlGaN FETs
Tomohiro Otsuka, Takaya Abe, Takahito Kitada +3
GaN and the heterostructures are attractive in condensed matter science and applications for electronic devices. We measure the electron transport in GaN/AlGaN field-effect transis…