dorsal/arxiv
View SchemaDecoy state quantum key distribution with two-way classical post-processing
| Authors | Xiongfeng Ma, Chi-Hang Fred Fung, Frédéric Dupuis, Kai Chen, Kiyoshi Tamaki, Hoi-Kwong Lo |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0604094 |
| URL | https://arxiv.org/abs/quant-ph/0604094 |
| DOI | 10.1103/PhysRevA.74.032330 |
| Journal | PHYSICAL REVIEW A 74, 032330 (2006) |
Abstract
Decoy states have recently been proposed as a useful method for substantially improving the performance of quantum key distribution protocols when a coherent state source is used. Previously, data post-processing schemes based on one-way classical communications were considered for use with decoy states. In this paper, we develop two data post-processing schemes for the decoy-state method using two-way classical communications. Our numerical simulation (using parameters from a specific QKD experiment as an example) results show that our scheme is able to extend the maximal secure distance from 142km (using only one-way classical communications with decoy states) to 181km. The second scheme is able to achieve a 10% greater key generation rate in the whole regime of distances.
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"abstract": "Decoy states have recently been proposed as a useful method for substantially\nimproving the performance of quantum key distribution protocols when a coherent\nstate source is used. Previously, data post-processing schemes based on one-way\nclassical communications were considered for use with decoy states. In this\npaper, we develop two data post-processing schemes for the decoy-state method\nusing two-way classical communications. Our numerical simulation (using\nparameters from a specific QKD experiment as an example) results show that our\nscheme is able to extend the maximal secure distance from 142km (using only\none-way classical communications with decoy states) to 181km. The second scheme\nis able to achieve a 10% greater key generation rate in the whole regime of\ndistances.",
"arxiv_id": "quant-ph/0604094",
"authors": [
"Xiongfeng Ma",
"Chi-Hang Fred Fung",
"Fr\u00e9d\u00e9ric Dupuis",
"Kai Chen",
"Kiyoshi Tamaki",
"Hoi-Kwong Lo"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.74.032330",
"journal_ref": "PHYSICAL REVIEW A 74, 032330 (2006)",
"title": "Decoy state quantum key distribution with two-way classical post-processing",
"url": "https://arxiv.org/abs/quant-ph/0604094"
},
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