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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]
Verification of identifiability of quantum states in quantum key delivery Shunya Tajima, Atsushi Okamoto, Akihisa Tomita (hokudai) |
In quantum key distribution, it is required that when creating the transmission state, the state is identical in all deg... [more] | |
| RCS, SAT (Joint) |
2023-09-01 15:10 |
Nagano | Naganoken Nokyo Building, and online (Primary: On-site, Secondary: Online) |
Research of Satellite based QKD for Global Quantum Cryptographic Network Construction Takahiro Akiyama, Segawa Tetsuya, Yamazaki Masaya, Nemoto Kazuya (SJC)  SAT2023-46 |
(To be available after the conference date) [more] | SAT2023-46 pp.57-59 |
| RCS, SAT (Joint) |
2023-09-01 15:35 |
Nagano | Naganoken Nokyo Building, and online (Primary: On-site, Secondary: Online) |
Feasibility Study of Physical-Layer Cryptography and Line-of-Sight Quantum Key Distribution over GEO-Ground Links based on Link Budget Calculation Hiroyuki Endo, Masahide Sasaki, Mikio Fujiwara (NICT) SAT2023-47 |
Since the channel is highly directional and line-of-sight, it is reasonable to assume that an eavesdropper is hard to fu... [more] | SAT2023-47 pp.60-65 |
| AP, SANE, SAT (Joint) |
2023-07-12 15:00 |
Hokkaido | The Citizen Activity Center (Primary: On-site, Secondary: Online) |
Quantum Signal Transmission Experiment for Line-of-sight Quantum Key Distribution Hiroyuki Endo, Mitsuo Kitamura, Shunsuke Ozawa (NICT), Ryosuke Shimizu (UEC), Mikio Fujiwara, Masahide Sasaki (NICT) SAT2023-13 |
Quantum key distribution (QKD) can be secure against any physically allowable attacks. Its transmission distance and key... [more] | SAT2023-13 pp.19-24 |
| QIT (2nd) |
2022-05-30 13:30 |
Online | Online | [Poster Presentation]
Experimental demonstration of a local homodyne measurement Arora Devanshi (Shizuoka Univ.), Go Kato (NICT), Takuya Hirano (Gakushuin Univ.), Masaki Owari (Shizuoka Univ.) |
Balanced homodyne detection is an essential tool to realize continuous variable (CV) quantum communication protocols. A ... [more] | |
| QIT (2nd) |
2021-11-30 - 2021-12-01 |
Online | Online | [Poster Presentation]
Analysis of the effects of the two-photon temporal distinguishability on measurement-device-independent quantum key distribution Haobo Ge, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.), Kazuhisa Ogawa (Osaka Univ.) |
Measurement-device-independent quantum key distribution (MDI-QKD) protects the receiver from attacks against the measure... [more] | |
| NS | 2021-10-07 13:50 |
Online | Online | [Invited Talk]
Quantum Cryptography technologies for realizing the Quantum Key Distribution platform Keisuke Mera (Toshiba) NS2021-70 |
The outline of the technologies of Quantum cryptography for realizing the Quantum Key Distribution platform, the trends ... [more] | NS2021-70 pp.14-15 |
| 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) |
2017-11-16 13:50 |
Saitama | Saitama University | [Poster Presentation]
BB84 Quantum Key Distribution system with a Dual-Parallel Modulator Weiyang Zhang, Yu Kadosawa, Akihisa Tomita, Kazuhisa Ogawa, Atsushi Okamoto (Hokkaido Univ.) |
The state preparation flaw which is generated by the pulse fluctuation in the signal applied for the phase modulator in ... [more] | |
| QIT (2nd) |
2017-05-29 15:00 |
Kyoto | Ritesumeikan University, Suzaku Campus | [Poster Presentation]
Evaluation of a practical QKD system in a multi-core fiber Takao Ochi, Ken-ichiro Yoshino (NEC), Mikio Fujiwara, Masahide Sasaki (NICT) |
Quantum key distribution (QKD) is the technology with which a random number can be shared safely like an information the... [more] | |
| IT, ISEC, WBS | 2016-03-10 15:05 |
Tokyo | The University of Electro-Communications | Improved Key Rate of the Semi-Quantum Key Distribution Protocol Kento Yamada, Ryutaroh Matumoto (Tokyo Tech) IT2015-121 ISEC2015-80 WBS2015-104 |
The semi-quantum key distribution protocol(SQKD) is known as a secret key sharing method with information-theoretic secu... [more] | IT2015-121 ISEC2015-80 WBS2015-104 pp.125-130 |
| QIT (2nd) |
2015-05-25 13:20 |
Osaka | Osaka University | [Poster Presentation]
Robust Quantum State Generation with a Dual-Parallel Modulator and Its Application for Quantum Key Distribution Systems Yu Kadosawa, Kensuke Nakata, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.) |
Secure key in BB84 quantum key distribution system is affected by the state preparation flaws, which arise mainly from t... [more] | |
| QIT (2nd) |
2014-05-12 17:30 |
Aichi | Nagoya Univ. | Measurement-device-independent quantum key distribution for SARG04 Akihiro Mizutani (Osaka Univ.), Kiyoshi Tamaki (NTT), Rikizo Ikuta, Takashi Yamamoto, Nobuyuki Imoto (Osaka Univ.) |
The measurement-device-independent quantum key distribution (MDI QKD) was proposed to make BB84 completely free from an... [more] |
|
| QIT (2nd) |
2013-11-18 - 2013-11-19 |
Tokyo | Waseda Univ. | [Poster Presentation]
Evaluation of the phase correlation between the optical pulses for transmission in quantum key distribution at 10 GHz Toshiya Kobayashi, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.) |
Quantum key distribution (BB84) using a weak coherent state light source have been shown secure on the assumption that t... [more] | |
| SCE | 2013-10-03 09:55 |
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 pp.61-66 |
| QIT (2nd) |
2013-05-27 10:30 |
Hokkaido | Hokkaido Univ. | On misconception of Koashi's key rate theory of quantum key distribution Osamu Hirota (Tamagawa Univ.) |
It has been pointed out many times by Yuen that the security theory of quantum key distribution(QKD) originated by Shor-... [more] | |
| QIT (2nd) |
2013-05-28 14:30 |
Hokkaido | Hokkaido Univ. | Continuous Variable Entropic Uncertainty Relations with Quantum Side Information and Application to QKD Fabian Furrer (Univ. of Tokyo), Mario Berta, Volkher B. Scholz, Matthias Christandl (ETH), Marco Tomamichel (NUS) |
We present entropic uncertainty relations for continuous variable systems in the presence of a quantum memory. These unc... [more] | |
| QIT (2nd) |
2012-11-27 - 2012-11-28 |
Kanagawa | Keio Univ. Hiyoshi Campus | [Poster Presentation]
Evaluation of the phase correlation between the optical pulses for transmission in quantum key distribution Toshiya Kobayashi, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.) |
Security proofs of the quantum key distribution (BB84) have been performed on the assumption that the phase correlation ... [more] | |
| OCS, CS (Joint) |
2011-01-27 14:25 |
Tokushima | The University of Tokushima | Field demonstration of differential-phase-shift QKD system over 90-km link under the framework of Tokyo QKD Network Toshimori Honjo (NTT), Mikio Fujiwara, Masahide Sasaki, Shigehito Miki, Taro Yamashita, Zhen Wang (NICT), Yasuhiro Tokura (NTT) OCS2010-102 |
We report a field demonstration of the differential-phase-shift quantum key distribution (DPS-QKD) system over 90-km ins... [more] | OCS2010-102 pp.19-24 |
| LQE, OPE | 2005-06-24 16:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A minimized Photon Receiver for a high-speed quantum cryptosystem Seigo Takahashi, Akihiro Tanaka, Wakako Maeda, Akio Tajima, Takeshi Takeuchi, Akihisa Tomita (NEC Corp.) |
A practical quantum cryptosystem which security is guaranteed by quantum physics is strongly required. A high-speed and ... [more] | OPE2005-26 LQE2005-25 pp.61-66 |
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