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 Results 1 - 14 of 14  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
SR 2022-05-13
Tokyo NICT Koganei
(Primary: On-site, Secondary: Online)
[Invited Talk] Computation with optical parametric oscillator networks
Hiroki Takesue, Takahiro Inagaki, Kensuke Inaba, Takuya Ikuta, Yasuhiro Yamada, Yuya Yonezu, Toshimori Honjo (NTT) SR2022-15
We present our recent effort to realize computations that efficiently solve difficult problems such as combinatorial opt... [more] SR2022-15
Online Online Scalable implementation of (2^N+1) mutually unbiased basis measurement for 2^N-dimensional quantum states
Takuya Ikuta (NTT/Osaka Univ.), Seiseki Akibue, Yuya Yonezu, Toshimori Honjo, Hiroki Takesue (NTT), Kyo Inoue (Osaka Univ.)
(To be available after the conference date) [more]
Hokkaido Hokkaido Univ. [Poster Presentation] Optimization of Channel Allocation and Transmission Power for D2D Communication Using Coherent Ising Machine
Yuchang Jiang, Hirotake Ito, Shoya Kobayashi (TUS), Hiroki Takesue (NTT), Kazuyuki Aihara (UT), Mikio Hasegawa (TUS)
The effectiveness of a high-speed combinatorial optimization method using a coherent Ising machine (CIM) has been shown.... [more]
Miyagi Research Institute of Electrical Communication, Tohoku Univ. [Special Invited Talk] Quantum communication experiments
Hiroki Takesue (NTT)
LQE, LSJ 2019-05-30
Shiga   [Invited Talk] Quantum optics experiments at NTT -- Quantum communication, integrated quantum photonics, and coherent Ising machine --
Hiroki Takesue (NTT) LQE2019-15
 [more] LQE2019-15
IPSJ-SLDM, RECONF, VLD, CPSY, IPSJ-ARC [detail] 2019-01-30
Kanagawa Raiosha, Hiyoshi Campus, Keio University Design and implementation of FPGA measurement feedback system in Coherent Ising Machine
Toshimori Honjo, Takahiro Inagaki, Kensuke Inaba, Takuya Ikuta, Hiroki Takesue (NTT) VLD2018-78 CPSY2018-88 RECONF2018-52
To solve combinatorial optimization problems, the way to utilize new type of computer that can find ground state of Isin... [more] VLD2018-78 CPSY2018-88 RECONF2018-52
NLP, CCS 2018-06-10
Kyoto Kyoto Terrsa Performance Analysis of a Coherent Ising Machine with Hardware Constraints
Hirotake Ito, Yukio Murata (TUS), Hiroki Takesue (NTT), Kazuyuki Aihara (TU), Mikio Hasegawa (TUS) NLP2018-39 CCS2018-12
A fast solution method of combinational optimization problem using a Coherent Ising Machine has been developed. A method... [more] NLP2018-39 CCS2018-12
CCS, NLP 2016-06-14
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Optical oscillator network for solving combinatorial optimization problems -- Coherent Ising machine --
Shoko Utsunomiya, Shuhei Tamate (NII), Yoshitaka Haribara, Hiromasa Sakaguchi (Tokyo Univ), Hiroki Takesue, Takahiro Inagaki, Kensuke Inaba (NTT), Kyo Inoue (Osaka univ), Yoshihisa Yamamoto (JST) NLP2016-28 CCS2016-11
 [more] NLP2016-28 CCS2016-11
- 2014-05-13
Aichi Nagoya Univ. [Poster Presentation] On-chip generation and spatial separation of quantum correlated photon pairs using Si-silica monolithic waveguide platform
Peter Karkus, Nobuyuki Matsuda, Hidetaka Nishi, Tai Tsuchizawa, William J. Munro, Hiroki Takesue, Koji Yamada (NTT)
We present a monolithic device consisting of a Si-wire waveguide and a silica-based arrayed waveguide grating, capable o... [more]
SCE 2013-10-03
Miyagi Tohoku University, RIEC Fabrication of superconducting single-photon detector with ultralow dark count rate and quantum key distribution over 300 km
Hiroyuki Shibata, Kaoru Shimizu, Toshimori Honjo, Hiroki Takesue, Yasuhiro Tokura (NTT) SCE2013-30
We report the fabrication of a superconducting nanowire single-photon detector (SSPD) with an ultralow dark count rate (... [more] SCE2013-30
- 2013-05-28
Hokkaido Hokkaido Univ. [Poster Presentation] Single photon buffer based on coupled resonator optidal waveguide
Hiroki Takesue, Nobuyuki Matsuda, Eiichi Kuramochi, Masaya Notomi (NTT)
Integrated quantum optical circuit is now drawing attention as a way to realize large-scale photonic quantum information... [more]
Osaka Osaka Univ. Engr. Sci. Sigma Hall (Toyonaka) [Poster Presentation] Observation of an ultra-narrowband parametric gain in photonic crystal coupled high-Q cavities
Nobuyuki Matsuda, Hiroki Takesue, Eiichi Kuramochi, Masaya Notomi (NTT)
Osaka Osaka Univ. Engr. Sci. Sigma Hall (Toyonaka) [Poster Presentation] Polarization-entangled photon-pair generation using a polarization-rotator-integrated silicon photonic circuit
Hanna Le Jeannic, Nobuyuki Matsuda, Hiroki Takesue, Hiroshi Fukuda, Tai Tsuchizawa, Toshifumi Watanabe, Koji Yamada, Seiichi Itabashi, Yasuhiro Tokura (NTT)
SCE 2010-01-20
Tokyo Kikai-Shinkou-Kaikan Bldg. Comparison of timing jitter between NbN superconducting single-photon detector and avalanche photodiode
Tadakiyo Seki, Hiroyuki Shibata (NTT Corp./Osaka Univ.), Hiroki Takesue, Yasuhiro Tokura (NTT), Nobuyuki Imoto (Osaka Univ.) SCE2009-26
We report the pulse-to-pulse timing jitter measurement of a niobium nitride (NbN) superconducting single-photon detector... [more] SCE2009-26
 Results 1 - 14 of 14  /   
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