dorsal/arxiv
View SchemaGhost imaging, quantum and classical aspects
| Authors | A. Gatti, E. Brambilla, M. Bache, L. A. Lugiato |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0405056 |
| URL | https://arxiv.org/abs/quant-ph/0405056 |
Abstract
We analytically show that it is possible to perform coherent imaging by using the classical correlation of two beams obtained by splitting incoherent thermal radiation. A formal analogy is demonstrated between two such classically correlated beams and two entangled beams produced by parametric down-conversion. Because of this analogy, the classical beams can mimic qualitatively all the imaging properties of the entangled beams, even in ways which up to now were not believed possible. A key feature is that these classical beams are spatially correlated both in the near-field and in the far-field. Using realistic numerical simulations the performances of a quasi-thermal and a parametric down-conversion source are shown to be closely similar, both for what concerns the resolution and statistical properties. The results of this paper provide a new scenario for the discussion of what role the entanglement plays in correlated imaging.
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"abstract": "We analytically show that it is possible to perform coherent imaging by using\nthe classical correlation of two beams obtained by splitting incoherent thermal\nradiation. A formal analogy is demonstrated between two such classically\ncorrelated beams and two entangled beams produced by parametric\ndown-conversion. Because of this analogy, the classical beams can mimic\nqualitatively all the imaging properties of the entangled beams, even in ways\nwhich up to now were not believed possible. A key feature is that these\nclassical beams are spatially correlated both in the near-field and in the\nfar-field. Using realistic numerical simulations the performances of a\nquasi-thermal and a parametric down-conversion source are shown to be closely\nsimilar, both for what concerns the resolution and statistical properties. The\nresults of this paper provide a new scenario for the discussion of what role\nthe entanglement plays in correlated imaging.",
"arxiv_id": "quant-ph/0405056",
"authors": [
"A. Gatti",
"E. Brambilla",
"M. Bache",
"L. A. Lugiato"
],
"categories": [
"quant-ph"
],
"title": "Ghost imaging, quantum and classical aspects",
"url": "https://arxiv.org/abs/quant-ph/0405056"
},
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