dorsal/arxiv
View SchemaContinuous variable quantum cryptography using coherent states
| Authors | Frédéric Grosshans, Philippe Grangier |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0109084 |
| URL | https://arxiv.org/abs/quant-ph/0109084 |
| DOI | 10.1103/PhysRevLett.88.057902 |
| Journal | Phys. Rev. Lett. 88, 057902 (2002) |
Abstract
We propose several methods for quantum key distribution (QKD) based upon the generation and transmission of random distributions of coherent or squeezed states, and we show that they are are secure against individual eavesdropping attacks. These protocols require that the transmission of the optical line between Alice and Bob is larger than 50 %, but they do not rely on "non-classical" features such as squeezing. Their security is a direct consequence of the no-cloning theorem, that limits the signal to noise ratio of possible quantum measurements on the transmission line. Our approach can also be used for evaluating various QKD protocols using light with gaussian statistics.
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"abstract": "We propose several methods for quantum key distribution (QKD) based upon the\ngeneration and transmission of random distributions of coherent or squeezed\nstates, and we show that they are are secure against individual eavesdropping\nattacks. These protocols require that the transmission of the optical line\nbetween Alice and Bob is larger than 50 %, but they do not rely on\n\"non-classical\" features such as squeezing. Their security is a direct\nconsequence of the no-cloning theorem, that limits the signal to noise ratio of\npossible quantum measurements on the transmission line. Our approach can also\nbe used for evaluating various QKD protocols using light with gaussian\nstatistics.",
"arxiv_id": "quant-ph/0109084",
"authors": [
"Fr\u00e9d\u00e9ric Grosshans",
"Philippe Grangier"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.88.057902",
"journal_ref": "Phys. Rev. Lett. 88, 057902 (2002)",
"title": "Continuous variable quantum cryptography using coherent states",
"url": "https://arxiv.org/abs/quant-ph/0109084"
},
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