dorsal/arxiv
View SchemaGeneration of Continuous Variable Einstein-Podolsky-Rosen Entanglement via the Kerr Nonlinearity in an Optical Fibre
| Authors | Ch. Silberhorn, P. K. Lam, O. Weiss, F. Koenig, N. Korolkova, G. Leuchs |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0103002 |
| URL | https://arxiv.org/abs/quant-ph/0103002 |
| DOI | 10.1103/PhysRevLett.86.4267 |
| Journal | Phys. Rev. Lett. 86, 4267 (2001) |
Abstract
We report on the generation of a continuous variable Einstein-Podolsky-Rosen (EPR) entanglement using an optical fibre interferometer. The Kerr nonlinearity in the fibre is exploited for the generation of two independent squeezed beams. These interfere at a beam splitter and EPR entanglement is obtained between the output beams. The correlation of the amplitude (phase) quadratures are measured to be 4.0+-0.2 (4.0+-0.4) dB below the quantum noise limit. The sum criterion for these squeezing variances 0.80+-0.03 < 2 verifies the nonseparability of the state. The product of the inferred uncertainties for one beam 0.64+-0.08 is well below the EPR limit of unity.
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"abstract": "We report on the generation of a continuous variable Einstein-Podolsky-Rosen\n(EPR) entanglement using an optical fibre interferometer. The Kerr nonlinearity\nin the fibre is exploited for the generation of two independent squeezed beams.\nThese interfere at a beam splitter and EPR entanglement is obtained between the\noutput beams. The correlation of the amplitude (phase) quadratures are measured\nto be 4.0+-0.2 (4.0+-0.4) dB below the quantum noise limit. The sum criterion\nfor these squeezing variances 0.80+-0.03 \u003c 2 verifies the nonseparability of\nthe state. The product of the inferred uncertainties for one beam 0.64+-0.08 is\nwell below the EPR limit of unity.",
"arxiv_id": "quant-ph/0103002",
"authors": [
"Ch. Silberhorn",
"P. K. Lam",
"O. Weiss",
"F. Koenig",
"N. Korolkova",
"G. Leuchs"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.86.4267",
"journal_ref": "Phys. Rev. Lett. 86, 4267 (2001)",
"title": "Generation of Continuous Variable Einstein-Podolsky-Rosen Entanglement via the Kerr Nonlinearity in an Optical Fibre",
"url": "https://arxiv.org/abs/quant-ph/0103002"
},
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