| Paper Abstract and Keywords |
| Presentation |
2025-06-16 14:10
[Poster Presentation]
Preliminary study on reducing communication traffic in disclosure-based information reconciliation for continuous-variable quantum key distribution
Takumi Kamiya (Nitech), Hiroyuki Endo (NICT), Kenichiro Hibi, Eiji Okamoto (Nitech) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Continuous-variable quantum key distribution (CV-QKD) has garnered attention among various QKD protocols due to its compatibility with optical communication systems based on homodyne detection using a local oscillator, as well as its relatively low-cost implementation using existing optical communication technologies. To improve the performance of CV-QKD, we have previously proposed an efficient information reconciliation method that utilizes part of the homodyne measurement values obtained by the receiver as auxiliary information for error correction. However, since the sender and receiver need to share homodyne measurement values typically represented by multiple bits, a significant increase in communication traffic over the public channel has been a concern. In this paper, we propose a novel reconciliation method that reduces public channel traffic by superimposing the homodyne measurement values onto other information. Through computer simulations, we demonstrate that this approach can reduce traffic while maintaining error correction performance comparable to conventional methods. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
quantum cryptography / continuous-variable quantum key distribution / information reconciliation / LDPC codes / / / / |
| Reference Info. |
IEICE Tech. Rep. |
| Paper # |
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| Download PDF |
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| Conference Information |
| Committee |
HCL |
| Conference Date |
2025-06-16 - 2025-06-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
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| Paper Information |
| Registration To |
HCL |
| Conference Code |
2025-06-HCL |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Preliminary study on reducing communication traffic in disclosure-based information reconciliation for continuous-variable quantum key distribution |
| Sub Title (in English) |
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| Keyword(1) |
quantum cryptography |
| Keyword(2) |
continuous-variable quantum key distribution |
| Keyword(3) |
information reconciliation |
| Keyword(4) |
LDPC codes |
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| 1st Author's Name |
Takumi Kamiya |
| 1st Author's Affiliation |
Nagoya Institute of Technology (Nitech) |
| 2nd Author's Name |
Hiroyuki Endo |
| 2nd Author's Affiliation |
National Institute of Information and Communications Technology (NICT) |
| 3rd Author's Name |
Kenichiro Hibi |
| 3rd Author's Affiliation |
Nagoya Institute of Technology (Nitech) |
| 4th Author's Name |
Eiji Okamoto |
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Nagoya Institute of Technology (Nitech) |
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| Speaker |
Author-1 |
| Date Time |
2025-06-16 14:10:00 |
| Presentation Time |
50 minutes |
| Registration for |
HCL |
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| Volume (vol) |
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