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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Ultrastrongly coupled device in superconducting quantum circuit Akiyoshi Tomonaga (AIST), Roberto Stassi (UNIME), Hiroto Mukai, Franco Nori (RIKEN), Fumiki Yoshihara, Jaw-Shen Tsai (TUS), Kunihiro Inomata (AIST) |
Ultrastrong coupling refers to a regime where the coupling energy between an atom and a resonator amounts to more than 1... [more] | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Improving threshold for fault-tolerant color code quantum computing by flagged weight optimization Yugo Takada (Osaka Univ.), Keisuke Fujii (Osaka Univ./RIKEN) |
Color codes are promising quantum error correction (QEC) codes because they have an advantage against surface codes in t... [more] | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Optimal POVM with minimal size in two-parameter qubit-state estimation Jianchao Zhang, Jun Suzuki (UEC) |
In the realm of qubit state tomography, the accurate estimation of quantum states parameterized across the complete Bloc... [more] | |
| SDM | 2023-11-09 15:05 |
Tokyo | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Superconducting quantum computing: current status and challenges Eisuke Abe (RIKEN)  SDM2023-66 |
The current status and challenges in the development of superconducting quantum computers are outlined. [more] | SDM2023-66 pp.16-19 |
| QIT (2nd) |
2023-05-30 10:30 |
Kyoto | Katsura Campus, Kyoto University | Remote Entanglement between Fixed-Frequncy Qubits through Quantum State Transfer
-- Model for Quantum Circuit Simulations -- Mari hfuchi, Shintaro Sato (Fujitsu) |
Remote entanglement through quantum state transfer is the basis of quantum computation between distant qubits (chips). I... [more] | |
| QIT (2nd) |
2023-05-30 10:45 |
Kyoto | Katsura Campus, Kyoto University | Design of multi-controlled qubit gates using qutrits and challenges for implementation to IBM Quantum Rikuto Ojima, Yutaro Iiyama, Wonho Jang (Tokyo Univ.), Naoki Kanazawa, Tamiya Onodera (TRL), Koji Terashi (Tokyo Univ.) |
The multi-controlled bit gate is ubiquitous for quantum algorithms, and is an essential gate for superconducting quantum... [more] | |
| QIT (2nd) |
2023-05-30 14:15 |
Kyoto | Katsura Campus, Kyoto University | Circuit optimization of quantum phase estimation with Pauli product set Yuki Koizumi (Tokyo Univ.), Yasunari Suzuki, Yuuki Tokunaga (NTT CD Labs) |
Quantum phase estimation is a quantum algorithm that can extract Hamiltonian spectra, and it is suggested as one of the ... [more] | |
| QIT (2nd) |
2022-12-08 14:00 |
Kanagawa | Keio Univ. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Suppressing quantum errors on a real quantum device Takahiro Yamamoto, Ryutaro Ohira (IBM Quantum) |
In this study, we consider employing a virtual two-qubit gate (VTQG) as an error suppression technique. Here, we apply t... [more] | |
| SDM | 2022-11-10 15:15 |
Online | Online | [Invited Talk]
Simulation of CMOS circuit and single-electron transistors for readout of spin qubits Tetsufumi Tanamoto (Teikyo Univ.) SDM2022-68 |
In this study, we consider a scalable detection circuit theoretically based on the implementation of pairs of single-ele... [more] | SDM2022-68 pp.19-22 |
| SCE | 2022-08-09 13:25 |
Online | Online | Pulse-density-modulated microwave generator using single-flux-quantum circuits for controlling qubits Akira Kunihiro, Yuki Yamanashi, Nobuyuki Yoshikawa (Yokohama Natl. Univ.) SCE2022-7 |
Generally, superconducting qubits are controlled by an irradiation of a microwave pulse. We proposed a microwave pulse g... [more] | SCE2022-7 pp.34-38 |
| QIT (2nd) |
2022-05-30 10:15 |
Online | Online | Universal quantum computation based on nanoscale skyrmion helicity qubits Jing Xia, Xichao Zhang, Xiaoxi Liu (Shinshu Univ.), Yan Zhou (CUHK), Motohiko Ezawa (Univ. Tokyo) |
Skyrmions in frustrated magnets have the helicity degree of freedom, where two different configurations of Bloch-type s... [more] |
|
| SDM | 2022-02-04 13:00 |
Online | Online | [Invited Talk]
Superconducting Quantum Computers
-- Scalable wiring architecture -- Yutaka Tabuchi (RIKEN) SDM2021-78 |
Research and development of quantum computers using solid-state qubits are accelerating. Whereas people anticipate solid... [more] | SDM2021-78 pp.17-20 |
| QIT (2nd) |
2021-12-01 14:20 |
Online | Online | Effective Hamiltonian estimation of superconducting qubits by cross entropy minimization Moriuchi Kazuma, Mitarai Kousuke (Osaka Univ), Ogawa Kazuhisa (QIQB), Fujii Keisuke (Osaka Univ) |
In order to precisely design quantum operations and quantum analog simulations in quantum computers,it is essential to k... [more] | |
| SDM, ICD, ITE-IST [detail] | 2021-08-17 10:15 |
Online | Online | [Invited Talk]
Buried nanomagnet realizing high-speed/low-variability silicon spin qubits: implementable in error-correctable large-scale quantum computers Shota Iizuka, Kimihiko Kato, Atsushi Yagishita, Hidehiro Asai, Tetsuya Ueda, Hiroshi Oka, Junichi Hattori, Tsutomu Ikegami, Koichi Fukuda, Takahiro Mori (AIST) SDM2021-30 ICD2021-1 |
We propose a buried nanomagnet (BNM) realizing high-speed/low-variability silicon spin qubit operation, inspired by buri... [more] | SDM2021-30 ICD2021-1 pp.1-6 |
| SDM | 2021-06-22 15:20 |
Online | Online | [Invited Lecture]
Development of TFET-based qubits enabling high-temperature operation to realize silicon-based quantum computing Takahiro Mori (AIST) SDM2021-25 |
Quantum computers have been attractive because they could realize large-scale and highly complicated calculations that c... [more] | SDM2021-25 p.16 |
| QIT (2nd) |
2021-05-24 16:20 |
Online | Online | Generating time domain linear cluster state by recycling superconducting qubits Shotaro Shirai (TUS), Yu Zhou (RIKEN), Keiichi Sakata, Hiroto Mukai, Jaw-Shen Tsai (TUS) |
In quantum information processing, the many-body entangled state is a useful resource state, and the generation of a lar... [more] | |
| SCE | 2021-01-19 15:00 |
Online | Online | Reducing pump power for broadband impedance-matched Josephson parametric amplifiers Yoshiro Urade, Kun Zuo (RIKEN), Syotaro Baba, C. W. Sandbo Chang (Univ. Tokyo), Koh-ichi Nittoh (RIKEN), Kunihiro Inomata (AIST), Zhirong Lin (SIMIT), Tsuyoshi Yamamoto (NEC), Yasunobu Nakamura (RIKEN) SCE2020-21 |
Josephson parametric amplifiers (JPAs) with quantum-limited low-noise property are crucial devices for fast and high-fid... [more] | SCE2020-21 pp.24-29 |
| ICD, SDM, ITE-IST [detail] | 2020-08-07 09:30 |
Online | Online | [Invited Talk]
Understanding the Origin of Low-frequency Noise in Cryo-CMOS Toward Long-coherence-time Si Spin Qubit Hiroshi Oka, Takashi Matsukawa, Kimihiko Kato, Shota Iizuka, Wataru Mizubayashi, Kazuhiko Endo, Tetsuji Yasuda, Takahiro Mori (AIST) SDM2020-6 ICD2020-6 |
Si quantum computer has attracted a significant attention due to its potential for large-scale integration using semicon... [more] | SDM2020-6 ICD2020-6 pp.25-30 |
| PN | 2020-03-03 11:00 |
Kagoshima | (Cancelled but technical report was issued) |
qubit state represented by pendulum oscillations Masataka Ohta (titech) PN2019-65 |
Dirac’s misconception that classical and quantum superpositions are different because absolute phase is quantum physical... [more] | PN2019-65 pp.77-80 |
| SCE | 2019-08-09 15:50 |
Ibaraki | National Institute of Advanced Industrial Science and Technology | Study of SFQ microwave switch with controllable amplitude for quantum bits Shiori Michibayashi, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa (Yokohama Nat. Univ.) SCE2019-19 |
Qubits with Josephson Junctions are controlled by microwave pulses of suitable duration time and amplitude. Control of e... [more] | SCE2019-19 pp.61-65 |
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