dorsal/arxiv
View SchemaSpatial entanglement of twin quantum images
| Authors | Enrico Brambilla, Alessandra Gatti, Patrick Navez, Luigi A. Lugiato |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0010108 |
| URL | https://arxiv.org/abs/quant-ph/0010108 |
Abstract
We show that spatial entanglement of two twin images obtained by parametric down-conversion is complete, i.e. concerns both amplitude and phase. This is realised through a homodyne detection of these images which allows for measurement of the field quadrature components. EPR correlations are shown to exist between symmetrical pixels of the two images. The best possible correlation is obtained by adjusting the phase of the local oscillator field (LO) in the area of maximal amplification. The results for quadrature components hold unchanged even in absence of any input image i.e. for pure parametric fluorescence. In this case they are not related to intensity and phase fluctuations.
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"abstract": "We show that spatial entanglement of two twin images obtained by parametric\ndown-conversion is complete, i.e. concerns both amplitude and phase. This is\nrealised through a homodyne detection of these images which allows for\nmeasurement of the field quadrature components. EPR correlations are shown to\nexist between symmetrical pixels of the two images. The best possible\ncorrelation is obtained by adjusting the phase of the local oscillator field\n(LO) in the area of maximal amplification. The results for quadrature\ncomponents hold unchanged even in absence of any input image i.e. for pure\nparametric fluorescence. In this case they are not related to intensity and\nphase fluctuations.",
"arxiv_id": "quant-ph/0010108",
"authors": [
"Enrico Brambilla",
"Alessandra Gatti",
"Patrick Navez",
"Luigi A. Lugiato"
],
"categories": [
"quant-ph"
],
"title": "Spatial entanglement of twin quantum images",
"url": "https://arxiv.org/abs/quant-ph/0010108"
},
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