dorsal/arxiv
View SchemaSimple and efficient quantum key distribution with parametric down-conversion
| Authors | Yoritoshi Adachi, Takashi Yamamoto, Masato Koashi, Nobuyuki Imoto |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0610118 |
| URL | https://arxiv.org/abs/quant-ph/0610118 |
| DOI | 10.1103/PhysRevLett.99.180503 |
| Journal | Phys. Rev. Lett. 99, 180503 (2007) |
Abstract
We propose an efficient quantum key distribution protocol based on the photon-pair generation from parametric down-conversion (PDC). It uses the same experimental setup as the conventional protocol, but a refined data analysis enables detection of photon-number splitting attacks by utilizing information from a built-in decoy state. Assuming the use of practical detectors, we analyze the unconditional security of the new scheme and show that it improves the secure key generation rate by several orders of magnitude at long distances, using a high intensity PDC source.
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"abstract": "We propose an efficient quantum key distribution protocol based on the\nphoton-pair generation from parametric down-conversion (PDC). It uses the same\nexperimental setup as the conventional protocol, but a refined data analysis\nenables detection of photon-number splitting attacks by utilizing information\nfrom a built-in decoy state. Assuming the use of practical detectors, we\nanalyze the unconditional security of the new scheme and show that it improves\nthe secure key generation rate by several orders of magnitude at long\ndistances, using a high intensity PDC source.",
"arxiv_id": "quant-ph/0610118",
"authors": [
"Yoritoshi Adachi",
"Takashi Yamamoto",
"Masato Koashi",
"Nobuyuki Imoto"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.99.180503",
"journal_ref": "Phys. Rev. Lett. 99, 180503 (2007)",
"title": "Simple and efficient quantum key distribution with parametric down-conversion",
"url": "https://arxiv.org/abs/quant-ph/0610118"
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