dorsal/arxiv
View SchemaQuantum cryptography with a predetermined key, using continuous variable Einstein-Podolsky-Rosen correlations
| Authors | M. D. Reid |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9909030 |
| URL | https://arxiv.org/abs/quant-ph/9909030 |
| DOI | 10.1103/PhysRevA.62.062308 |
| Journal | Phys. Rev. A62,062308(2000) |
Abstract
Correlations of the type discussed by EPR in their original 1935 paradox for continuous variables exist for the quadrature phase amplitudes of two spatially separated fields. These correlations were experimentally reported in 1992. We propose to use such EPR beams in quantum cryptography, to transmit with high efficiency messages in such a way that the receiver and sender may later determine whether eavesdropping has occurred. The merit of the new proposal is in the possibility of transmitting a reasonably secure yet predetermined key. This would allow relay of a cryptographic key over long distances in the presence of lossy channels.
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"abstract": "Correlations of the type discussed by EPR in their original 1935 paradox for\ncontinuous variables exist for the quadrature phase amplitudes of two spatially\nseparated fields. These correlations were experimentally reported in 1992. We\npropose to use such EPR beams in quantum cryptography, to transmit with high\nefficiency messages in such a way that the receiver and sender may later\ndetermine whether eavesdropping has occurred. The merit of the new proposal is\nin the possibility of transmitting a reasonably secure yet predetermined key.\nThis would allow relay of a cryptographic key over long distances in the\npresence of lossy channels.",
"arxiv_id": "quant-ph/9909030",
"authors": [
"M. D. Reid"
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"doi": "10.1103/PhysRevA.62.062308",
"journal_ref": "Phys. Rev. A62,062308(2000)",
"title": "Quantum cryptography with a predetermined key, using continuous variable Einstein-Podolsky-Rosen correlations",
"url": "https://arxiv.org/abs/quant-ph/9909030"
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