dorsal/arxiv
View SchemaCoherent State Quantum Key Distribution Without Random Basis Switching
| Authors | Christian Weedbrook, Andrew M. Lance, Warwick P. Bowen, Thomas Symul, Timothy C. Ralph, Ping Koy Lam |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0508169 |
| URL | https://arxiv.org/abs/quant-ph/0508169 |
| DOI | 10.1103/PhysRevA.73.022316 |
| Journal | Published, Phys. Rev. A 73, 022316 (2006) |
Abstract
The random switching of measurement bases is commonly assumed to be a necessary step of quantum key distribution protocols. In this paper we show that switching is not required for coherent state continuous variable quantum key distribution. We show this via the no-switching protocol which results in higher information rates and a simpler experimental setup. We propose an optimal eavesdropping attack against this protocol, for individual Gaussian attacks, and we investigate and compare the no-switching protocol applied to the original BB84 scheme.
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"abstract": "The random switching of measurement bases is commonly assumed to be a\nnecessary step of quantum key distribution protocols. In this paper we show\nthat switching is not required for coherent state continuous variable quantum\nkey distribution. We show this via the no-switching protocol which results in\nhigher information rates and a simpler experimental setup. We propose an\noptimal eavesdropping attack against this protocol, for individual Gaussian\nattacks, and we investigate and compare the no-switching protocol applied to\nthe original BB84 scheme.",
"arxiv_id": "quant-ph/0508169",
"authors": [
"Christian Weedbrook",
"Andrew M. Lance",
"Warwick P. Bowen",
"Thomas Symul",
"Timothy C. Ralph",
"Ping Koy Lam"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.73.022316",
"journal_ref": "Published, Phys. Rev. A 73, 022316 (2006)",
"title": "Coherent State Quantum Key Distribution Without Random Basis Switching",
"url": "https://arxiv.org/abs/quant-ph/0508169"
},
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