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All Technical Committee Conferences  (All Years)

Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 24件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
QIT
(2nd)
2019-11-19
11:30
Tokyo Gakushuin University Fast quantum algorithm for data approximation by optimized random features
Hayata Yamasaki (UTokyo), Sathyawageeswar Subramanian (University of Cambridge), Sho Sonoda (Riken), Masato Koashi (UTokyo)
 [more]
QIT
(2nd)
2019-05-20
17:30
Fukuoka Kyushu University, Chikushi Campus Quantum key distribution with simply characterized light sources
Akihiro Mizutani (Mitsubishi Electric Corporation), Toshihiko Sasaki (The Univ. of Tokyo), Yuki Takeuchi (NTT), Kiyoshi Tamaki (Univ. of Toyama), Masato Koashi (The Univ. of Tokyo)
 [more]
QIT
(2nd)
2019-05-21
14:30
Fukuoka Kyushu University, Chikushi Campus Frequency-domain Mach-Zehnder interferometer
Toshiki Kobayashi, Daisuke Yamazaki, Kenichiro Matsuki, Rikizo Ikuta (Osaka Univ.), Shigehito Miki (NICT), Taro Yamashita (Nagoya Univ.), Hirotaka Terai (NICT), Takashi Yamamoto (Osaka Univ.), Masato Koashi (Univ. of Tokyo), Nobuyuki Imoto (Osaka Univ.)
We demonstrate a first-order interference between coherent light at 1580~nm and 795~nm by using a frequency-domain Mach-... [more]
QIT
(2nd)
2018-06-04
17:50
Hiroshima ICCH Ran Performance improvement of RRDPS protocol by refined security analysis
Takaya Matsuura, Toshihiko Sasaki, Masato Koashi (UT)
In recent years, quantum key distribution (QKD) protocols which use weak coherent pulses have been attracting much atten... [more]
QIT
(2nd)
2018-06-05
09:40
Hiroshima ICCH Ran Polarization insensitive frequency conversion for an atom-photon entanglement distribution via a telecom network
Rikizo Ikuta, Toshiki Kobayashi, Tetsuo Kawakami (Osaka Univ.), Shigehito Miki, Masahiro Yabuno, Taro Yamashita, Hirotaka Terai (NICT), Masato Koashi (Univ. of Tokyo), Tetsuya Mukai (NTT), Takashi Yamamoto, Nobuyuki Imoto (Osaka Univ.)
 [more]
QIT
(2nd)
2018-06-05
16:20
Hiroshima ICCH Ran One-shot partial decoupling and its applications to complex quantum many-body systems
Yoshifumi Nakata (UT), Eyuri Wakakuwa (UEC), Masato Koashi (UT)
 [more]
QIT
(2nd)
2017-05-29
10:00
Kyoto Ritesumeikan University, Suzaku Campus Efficient unitary designs with nearly time-independent Hamiltonian dynamics
Yoshifumi Nakata (UT), Christoph Hirche (UAB), Masato Koashi (UT), Andreas Winter (UAB)
 [more]
QIT
(2nd)
2017-05-29
15:00
Kyoto Ritesumeikan University, Suzaku Campus [Poster Presentation] Photonic multipartite entanglement conversion using nonlocal operations
Toshiyuki Tashima (Kyoto Univ.), Mark Tame (UKZN), Sahin Kaya Ozdemir (Washington Univ.), Franco Nori (RIKEN), Masato Koashi (Tokyo. Univ.), Harald Weinfurter (LMU)
We propose a simple setup for the conversion of multipartite entangled
states in a quantum network with restricted acce... [more]

QIT
(2nd)
2016-05-30
10:10
Kochi Kochi University of Technology Eikokuji campus Quantum key distribution protocol with slow basis choice
Toshihiko Sasaki (U Tokyo), Kiyoshi Tamaki (NTT), Masato koashi (U Tokyo)
In order to improve the key generation rate of the quantum key distribution (QKD) protocols, we try to
make the signal ... [more]

QIT
(2nd)
2016-05-31
09:50
Kochi Kochi University of Technology Eikokuji campus Wavelength conversion of non-classical light emitted from rubidium atoms to the telecom band
Toshiki Kobayashi, Rikizo Ikuta, Kenichiro Matsuki (Osaka Univ.), Shigehito Miki, Taro Yamashita, Hirotaka Terai (NICT), Takashi Yamamoto (Osaka Univ.), Masato Koashi (Univ. of Tokyo), Tetsuya Mukai (NTT BRL), Nobuyuki Imoto (Osaka Univ.)
 [more]
QIT
(2nd)
2016-05-31
10:10
Kochi Kochi University of Technology Eikokuji campus Experimental demonstration of robust entanglement distribution over reciprocal channels assisted by a counter-propagating light
Rikizo Ikuta, Shota Nozaki, Takashi Yamamoto (Osaka Univ.), Masato Koashi (Univ. of Tokyo), Nobuyuki Imoto (Osaka Univ.)
 [more]
QIT
(2nd)
2016-05-31
10:30
Kochi Kochi University of Technology Eikokuji campus High fidelity entanglement swapping via a time-resolved coincidence measurement
Yoshiaki Tsujimoto, Motoki Tanaka, Yukihiro Sugiura, Rikizo Ikuta (Osaka Univ.), Shigehito Miki, Taro Yamashita, Hirotaka Terai (NICT), Takashi Yamamoto (Osaka Univ.), Masato Koashi (The Univ. of Tokyo), Nobuyuki Imoto (Osaka Univ.)
 [more]
QIT
(2nd)
2015-11-25
13:30
Kanagawa NTT Atsugi R&D center [Invited Talk] Quantum key distribution without monitoring disturbance
Masato Koashi (Univ. of Tokyo)
 [more]
QIT
(2nd)
2015-05-25
15:00
Osaka Osaka University Observation of a high visibility Hong-Ou-Mandel interference via a time-resolved coincidence measurement
Yoshiaki Tsujimoto, Yukihiro Sugiura, Motoki Tanaka, Rikizo Ikuta (Osaka univ.), Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara (NICT), Takashi Yamamoto (Osaka univ.), Masato Koashi (The Univ. of Tokyo), Masahide Sasaki, Zhen Wang (NICT), Nobuyuki Imoto (Osaka univ.)
We report on the observation of a high visibility Hong-Ou-Mandel~(HOM) interference between two photons by a high timing... [more]
QIT
(2nd)
2015-05-25
15:20
Osaka Osaka University Observation of frequency-domain Hong-Ou-Mandel interference by using a partial wavelength converter
Toshiki Kobayashi, Shuto Yasui, Rikizo Ikuta (Osaka Univ.), Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara (NICT), Takashi Yamamoto (Osaka Univ.), Masato Koashi (Univ. of Tokyo), Masahide Sasaki, Zhen Wang (NICT), Nobuyuki Imoto (Osaka Univ.)
 [more]
QIT
(2nd)
2015-05-25
13:20
Osaka Osaka University [Poster Presentation] Nondemolition optical switch driven by single photon
Yasunari Suzuki, Masaki Ichida, Tsuyoshi Nagamatsu, Yuhei Iwata, Motoki Kamihigashi, Haruka Tanji-Suzuki, Masato Koashi (Tokyo Univ)
By using cold neutral atomic ensemble in a high-finesse cavity, we can achieve atomic ensemble interacting strongly eve... [more]
QIT
(2nd)
2014-05-12
16:50
Aichi Nagoya Univ. Quantum key distribution protocol without monitoring disturbance
Toshihiko Sasaki (RIKEN), Yoshihisa Yamamoto (NII/RIKEN), Masato Koashi (UTokyo)
The differential phase-shift quantum key distribition protocol uses phase differences between adjasent optical pulses as... [more]
QIT
(2nd)
2013-05-28
14:50
Hokkaido Hokkaido Univ. Does "quantum nonlocality without entanglement" have quantum origin?
Masato Koashi (Univ. of Tokyo), Koji Azuma (NTT BRL), Shinya Nakamura, Nobuyuki Imoto (Osaka Univ.)
 [more]
QIT
(2nd)
2013-05-27
- 2013-05-28
Hokkaido Hokkaido Univ. [Poster Presentation] Observation of nonclassical interference using two photon pairs at visible and telecom wavelengths
Yoshiaki Tsujimoto, Daisuke Katsuse, Makoto Ando, Rikizo Ikuta, Takashi Yamamoto (Osaka Univ.), Masato Koashi (Tokyo Univ.), Nobuyuki Imoto (Osaka Univ.)
 [more]
QIT
(2nd)
2013-05-27
- 2013-05-28
Hokkaido Hokkaido Univ. [Poster Presentation] Observation of converted and unconverted lights preserving phase information via difference frequency generation by using weak coherent light pulse
Toshiki Kobayashi, Rikizo Ikuta, Hiroshi Kato (Osaka Univ.), Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara (NICT), Takashi Yamamoto (Osaka Univ.), Masato Koashi (Univ. of Tokyo), Masahide Sasaki, Zhen Wang (NICT), Nobuyuki Imoto (Osaka Univ.)
 [more]
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