Yasunobu Nakamura
University of Tokyo
255 Papers
1K Citations
Yasunobu Nakamura is an academic researcher from University of Tokyo. The author has contributed to research in topics: Qubit & Flux qubit. The author has an hindex of 55, co-authored 238 publications. Previous affiliations of Yasunobu Nakamura include NEC & Keio University.
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Papers
Preferential diagonal penetration of vortices into square superconducting networks
Tsuyoshi Tamegai,Yuji Tsuchiya,Yasuyuki Nakajima,T. Yamamoto,Yasunobu Nakamura,Jaw-Shen Tsai,Mutsuo Hidaka,Hirotaka Terai,Zhen Wang +8 more
TL;DR: In this paper, it was shown that when the lattice spacing is large and the width of superconducting line is narrow, vortices penetrate diagonally rather than parallel to the nearest neighbor direction.
17
On-demand generation and characterization of a microwave time-bin qubit
Jesper Ilves,Shingo Kono,Yoshiki Sunada,Shota Yamazaki,Minkyu Kim,Kazuki Koshino,Yasunobu Nakamura,Yasunobu Nakamura +7 more
TL;DR: In this paper, a Wigner tomography of a microwave time-bin qubit with a superconducting circuit quantum electrodynamics architecture was performed with a single heterodyne detector.
16
Quantum-State Control with a Single-Cooper-Pair Box
Yasunobu Nakamura,Jaw-Shen Tsai +1 more
TL;DR: In this article, a quantum state control of an artificial two-level system was demonstrated in a single-Cooper-pair box with a high-speed, but well-tailored, gate-voltage pulse.
16
Dephasing and dissipation in qubit thermodynamics.
Jukka P. Pekola,Yuta Masuyama,Yasunobu Nakamura,Yasunobu Nakamura,Joakim Bergli,Yuri Galperin +5 more
TL;DR: Stochastic evolution and dephasing of a qubit within the quantum jump approach allows one to treat individual realizations of inelastic processes, and in this way it provides solutions to problems in quantum thermodynamics and distributions in statistical mechanics.
Superconducting single-Cooper-pair box quantum bit with multi-gate-pulse operation
TL;DR: In this paper, the quantum coherent oscillation was observed in a solid-state device whose quantum states involved a macroscopic number of quantum particles, and phase control of the quantum state was demonstrated under a two-pulse operation.
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