H
Hideaki Takayanagi
Researcher at Tokyo University of Science
Publications - 252
Citations - 7038
Hideaki Takayanagi is an academic researcher from Tokyo University of Science. The author has contributed to research in topics: Superconductivity & Josephson effect. The author has an hindex of 36, co-authored 249 publications receiving 6720 citations. Previous affiliations of Hideaki Takayanagi include Nippon Telegraph and Telephone & Niigata University.
Papers
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Journal ArticleDOI
Fluxon dynamics in isolated long Josephson junctions
TL;DR: In this paper, the fluxon dynamics in isolated long Josephson junctions were investigated, where fluxons in the isolated junction obey a double sine-Gordon (DSG) equation and π-π kink oscillations appeared as a unique feature of the DSG system.
Journal ArticleDOI
Evolution of supercurrent path in Nb / Ru / Sr 2 RuO 4 dc-SQUIDs
Yusuke Nago,Ryosuke Ishiguro,Toshihiro Sakurai,M. Yakabe,Terutaro Nakamura,Shingo Yonezawa,Satoshi Kashiwaya,Hideaki Takayanagi,Hideaki Takayanagi,Y. Maeno +9 more
TL;DR: In this article, the phase-sensitive measurements of direct-current superconducting quantum interference devices (dc-SQUIDs) were performed to temperatures below a bulk Ru super-conducting transition temperature at 0.49 K.
Patent
Quantum bit apparatus and control method of quantum bit
Shiro Saito,Senba Koichi,Hideaki Takayanagi,Masahito Ueda,Hideki Yamamoto,正仁 上田,浩一 仙場,秀樹 山本,英明 高柳,志郎 齊藤 +9 more
TL;DR: In this paper, the problem of enabling the gate operation of the quantum bit of a quantum bit apparatus even at a frequency other than a frequency corresponding to one-nth of the difference between energy R and energy L.
Journal ArticleDOI
Fabrication of weak-link Nb-based nano-SQUIDs by FIB process
Tetsuro Matsumoto,Hiromi Kashiwaya,Hajime Shibata,Hideaki Takayanagi,Hideaki Takayanagi,Shintaro Nomura,Satoshi Kashiwaya +6 more
TL;DR: In this paper, a fabrication process of Nb-based nano-SQUIDs (superconducting quantum interference devices) containing two weak-link Josephson junctions patterned by a focused ion beam (FIB) was developed.
Journal ArticleDOI
Quantum state control, entanglement, and readout of the Josephson persistent-current qubit
Kouichi Semba,J. Johansson,Kosuke Kakuyanagi,Hayato Nakano,Shiro Saito,Hirotaka Tanaka,Hideaki Takayanagi +6 more
TL;DR: E entangled state and vacuum Rabi oscillations of a flux-qubit LC-resonator system where qubit-Resonator coupled state are controlled by a combination of microwave and DC-shift pulses, resulting in a controlling and measuring sequence analogous to atomic cavity QED.