dorsal/arxiv
View SchemaSecurity of Continuous-variable quantum cryptography using coherent states: Decline of postselection advantage
| Authors | Ryo Namiki, Takuya Hirano |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0506193 |
| URL | https://arxiv.org/abs/quant-ph/0506193 |
| DOI | 10.1103/PhysRevA.72.024301 |
Abstract
We investigate the security of continuous-variable (CV) quantum key distribution (QKD) using coherent states in the presence of quadrature excess noise. We consider an eavesdropping attack which uses a linear amplifier and beam splitter. This attack makes a link between beam-splitting attack and intercept-resend attack (classical teleportation attack). We also show how postselection loses its efficiency in a realistic channel.
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"abstract": "We investigate the security of continuous-variable (CV) quantum key\ndistribution (QKD) using coherent states in the presence of quadrature excess\nnoise. We consider an eavesdropping attack which uses a linear amplifier and\nbeam splitter. This attack makes a link between beam-splitting attack and\nintercept-resend attack (classical teleportation attack). We also show how\npostselection loses its efficiency in a realistic channel.",
"arxiv_id": "quant-ph/0506193",
"authors": [
"Ryo Namiki",
"Takuya Hirano"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.72.024301",
"title": "Security of Continuous-variable quantum cryptography using coherent states: Decline of postselection advantage",
"url": "https://arxiv.org/abs/quant-ph/0506193"
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