dorsal/arxiv
View SchemaLong-distance quantum key distribution in optical fiber
| Authors | P. A. Hiskett, D. Rosenberg, C. G. Peterson, R. J. Hughes, S. Nam, A. E. Lita, A. J. Miller, J. E. Nordholt |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0607177 |
| URL | https://arxiv.org/abs/quant-ph/0607177 |
| DOI | 10.1088/1367-2630/8/9/193 |
Abstract
Use of low-noise detectors can both increase the secret bit rate of long-distance quantum key distribution (QKD) and dramatically extend the length of a fibre optic link over which secure key can be distributed. Previous work has demonstrated use of ultra-low-noise transition-edge sensors (TESs) in a QKD system with transmission over 50 km. In this work, we demonstrate the potential of the TESs by successfully generating error-corrected, privacy-amplified key over 148.7 km of dark optical fibre at a mean photon number mu = 0.1, or 184.6 km of dark optical fibre at a mean photon number of 0.5. We have also exchanged secret key over 67.5 km that is secure against powerful photon-number-splitting attacks.
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"abstract": "Use of low-noise detectors can both increase the secret bit rate of\nlong-distance quantum key distribution (QKD) and dramatically extend the length\nof a fibre optic link over which secure key can be distributed. Previous work\nhas demonstrated use of ultra-low-noise transition-edge sensors (TESs) in a QKD\nsystem with transmission over 50 km. In this work, we demonstrate the potential\nof the TESs by successfully generating error-corrected, privacy-amplified key\nover 148.7 km of dark optical fibre at a mean photon number mu = 0.1, or 184.6\nkm of dark optical fibre at a mean photon number of 0.5. We have also exchanged\nsecret key over 67.5 km that is secure against powerful photon-number-splitting\nattacks.",
"arxiv_id": "quant-ph/0607177",
"authors": [
"P. A. Hiskett",
"D. Rosenberg",
"C. G. Peterson",
"R. J. Hughes",
"S. Nam",
"A. E. Lita",
"A. J. Miller",
"J. E. Nordholt"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1367-2630/8/9/193",
"title": "Long-distance quantum key distribution in optical fiber",
"url": "https://arxiv.org/abs/quant-ph/0607177"
},
"schema_id": "dorsal/arxiv",
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