dorsal/arxiv
View SchemaError tolerance of two-basis quantum key-distribution protocols using qudits and two-way classical communication
| Authors | Georgios M. Nikolopoulos, Kedar S. Ranade, Gernot Alber |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0602008 |
| URL | https://arxiv.org/abs/quant-ph/0602008 |
| DOI | 10.1103/PhysRevA.73.032325 |
| Journal | Phys. Rev. A 73 (No. 3, March 2006), 032325 |
Abstract
We investigate the error tolerance of quantum cryptographic protocols using $d$-level systems. In particular, we focus on prepare-and-measure schemes that use two mutually unbiased bases and a key-distillation procedure with two-way classical communication. For arbitrary quantum channels, we obtain a sufficient condition for secret-key distillation which, in the case of isotropic quantum channels, yields an analytic expression for the maximally tolerable error rate of the cryptographic protocols under consideration. The difference between the tolerable error rate and its theoretical upper bound tends slowly to zero for sufficiently large dimensions of the information carriers.
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"abstract": "We investigate the error tolerance of quantum cryptographic protocols using\n$d$-level systems. In particular, we focus on prepare-and-measure schemes that\nuse two mutually unbiased bases and a key-distillation procedure with two-way\nclassical communication. For arbitrary quantum channels, we obtain a sufficient\ncondition for secret-key distillation which, in the case of isotropic quantum\nchannels, yields an analytic expression for the maximally tolerable error rate\nof the cryptographic protocols under consideration. The difference between the\ntolerable error rate and its theoretical upper bound tends slowly to zero for\nsufficiently large dimensions of the information carriers.",
"arxiv_id": "quant-ph/0602008",
"authors": [
"Georgios M. Nikolopoulos",
"Kedar S. Ranade",
"Gernot Alber"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.73.032325",
"journal_ref": "Phys. Rev. A 73 (No. 3, March 2006), 032325",
"title": "Error tolerance of two-basis quantum key-distribution protocols using qudits and two-way classical communication",
"url": "https://arxiv.org/abs/quant-ph/0602008"
},
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