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| Presentation | 2023-07-12 15:00 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 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Quantum key distribution (QKD) can be secure against any physically allowable attacks. Its transmission distance and key generation rate are still limited. In the case of satellite-ground laser communication, on the other hand, where the channel is highly directional and line-of-sight, it is reasonable to assume that an eavesdropper is hard to fully access the line-of-sight channel between Alice and Bob without being found, and hence the QKD performance could be much improved. This scheme, so-called line-of-sight QKD is expected to construct a global-scale QKD network using satellites. This paper reports the long-distance quantum signal transmission experiment for line-of-sight QKD. We conducted the real-field experiment using the 7.8-km free-space optical testbed between UEC and NICT, and evaluate the quantum signal reception rate and the achievable key generation rate. Based on the results, we discuss the required technology for line-of-sight QKD. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Quantum Key distribution / Line-of-sight QKD / Physical-layer cryptography / Free-space optical communication / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 105, SAT2023-13, pp. 19-24, July 2023. | |
| Paper # | SAT2023-13 | |
| Date of Issue | 2023-07-05 (SAT) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SAT2023-13 |
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| Conference Information | |
| Committee | AP SANE SAT |
| Conference Date | 2023-07-12 - 2023-07-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Citizen Activity Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Remote sensing, Sattelite Communication, Radio propagation, Antennas and Propagation |
| Paper Information | |
| Registration To | SAT |
| Conference Code | 2023-07-AP-SANE-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Quantum Signal Transmission Experiment for Line-of-sight Quantum Key Distribution |
| Sub Title (in English) | |
| Keyword(1) | Quantum Key distribution |
| Keyword(2) | Line-of-sight QKD |
| Keyword(3) | Physical-layer cryptography |
| Keyword(4) | Free-space optical communication |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hiroyuki Endo |
| 1st Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 2nd Author's Name | Mitsuo Kitamura |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 3rd Author's Name | Shunsuke Ozawa |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 4th Author's Name | Ryosuke Shimizu |
| 4th Author's Affiliation | The University of Electro-Communications (UEC) |
| 5th Author's Name | Mikio Fujiwara |
| 5th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 6th Author's Name | Masahide Sasaki |
| 6th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
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| Speaker | Author-1 |
| Date Time | 2023-07-12 15:00:00 |
| Presentation Time | 20 minutes |
| Registration for | SAT |
| Paper # | SAT2023-13 |
| Volume (vol) | vol.123 |
| Number (no) | no.105 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2023-07-05 (SAT) |
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