Akiyoshi Tomonaga

Tokyo University of Science — Japan

Computer Science · Physical Sciences

7h-index242citations28works4.92yr avg
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Research Topics

Quantum Information and Cryptography(22), Quantum and electron transport phenomena(13), Quantum Computing Algorithms and Architecture(13), Cold Atom Physics and Bose-Einstein Condensates(4), Photonic and Optical Devices(3)

Publications28 total

Efficient spectrum analysis for multi-junction superconducting circuit
Physica Scripta·2025Open Access
Spectral properties of two superconducting artificial atoms coupled to a resonator in the ultrastrong coupling regime
Nature Communications·2025· 4 citedOpen Access
Stabilization of Kerr-cat qubits with quantum circuit refrigerator
npj Quantum Information·2025Open Access
Residual-<i>ZZ</i>-coupling suppression and fast two-qubit gate for Kerr-cat qubits based on level-degeneracy engineering
Applied Physics Letters·2025· 1 citedOpen Access
Probing fast quantum circuit refrigeration in the quantum regime
Physical Review Applied·2025· 2 cited
Residual-$ZZ$-coupling suppression and fast two-qubit gate for Kerr-cat qubits based on level-degeneracy engineering
arXiv (Cornell University)·2024Open Access
Probing instantaneous quantum circuit refrigeration in the quantum regime
arXiv (Cornell University)·2024Open Access
Stabilization of Kerr-cat qubits with quantum circuit refrigerator
arXiv (Cornell University)·2024Open Access
One photon simultaneously excites two atoms in a ultrastrongly coupled light-matter system
2024· 2 citedOpen Access
Observation and manipulation of quantum interference in a superconducting Kerr parametric oscillator
Nature Communications·2024· 40 citedOpen Access
Active initialization experiment of a superconducting qubit using a quantum circuit refrigerator
Physical Review Applied·2023· 21 cited
Spectral Properties of Two Superconducting Artificial Atoms Coupled to a Resonator in the Ultrastrong Coupling Regime
arXiv (Cornell University)·2023· 1 citedOpen Access
Observation and manipulation of quantum interference in a superconducting Kerr parametric oscillator
arXiv (Cornell University)·2023· 1 citedOpen Access
Active Initialization Experiment of Superconducting Qubit Using Quantum-circuit Refrigerator
arXiv (Cornell University)·2023Open Access
Compact Superconducting Microwave Resonators Based on <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:msub><mml:mtext>Al-AlO</mml:mtext><mml:mi>x</mml:mi></mml:msub></mml:math>-Al Capacitors
Physical Review Applied·2023· 12 cited
Compact superconducting microwave resonators based on Al-AlOx-Al capacitor
arXiv (Cornell University)·2022· 2 citedOpen Access
Quasiparticle tunneling and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mi>f</mml:mi></mml:math> charge noise in ultrastrongly coupled superconducting qubit and resonator
Physical review. B./Physical review. B·2021· 12 citedOpen Access
Ultrastrong Tunable Coupler Between Superconducting <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:mi>L</mml:mi><mml:mi>C</mml:mi></mml:math> Resonators
Physical Review Applied·2021· 17 citedOpen Access
Ultrastrong tunable coupler between superconducting LC resonators
arXiv (Cornell University)·2021Open Access
Study of a two-state fluctuation in a ultra-strongly coupled qubit-resonator system
Bulletin of the American Physical Society·2021
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Frequent Co-authors

Hiroto Mukai(20), Jaw-Shen Tsai(18), Rui Wang(5), Teruaki Yoshioka(4), Shintaro Takada(4), Yuma Okazaki(4), Nobu‐Hisa Kaneko(4), Shuji Nakamura(4), Sangil Kwon(3), J. S. Tsai(3), Fumiki Yoshihara(3), Roberto Stassi(3), Franco Nori(3), Kosuke Mizuno(3), Shumpei Masuda(3), Daisuke Iyama(2), Takahiko Kamiya(2), Shiori Fujii(2), Yu Zhou(2), Toshiaki Nagase(2)