dorsal/arxiv
View SchemaTime-reversal and super-resolving phase measurements
| Authors | K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, A. G. White |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0511214 |
| URL | https://arxiv.org/abs/quant-ph/0511214 |
| DOI | 10.1103/PhysRevLett.98.223601 |
| Journal | Phys.Rev.Lett.98:223601,2007 |
Abstract
We demonstrate phase super-resolution in the absence of entangled states. The key insight is to use the inherent time-reversal symmetry of quantum mechanics: our theory shows that it is possible to \emph{measure}, as opposed to prepare, entangled states. Our approach is robust, requiring only photons that exhibit classical interference: we experimentally demonstrate high-visibility phase super-resolution with three, four, and six photons using a standard laser and photon counters. Our six-photon experiment demonstrates the best phase super-resolution yet reported with high visibility and resolution.
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"abstract": "We demonstrate phase super-resolution in the absence of entangled states. The\nkey insight is to use the inherent time-reversal symmetry of quantum mechanics:\nour theory shows that it is possible to \\emph{measure}, as opposed to prepare,\nentangled states. Our approach is robust, requiring only photons that exhibit\nclassical interference: we experimentally demonstrate high-visibility phase\nsuper-resolution with three, four, and six photons using a standard laser and\nphoton counters. Our six-photon experiment demonstrates the best phase\nsuper-resolution yet reported with high visibility and resolution.",
"arxiv_id": "quant-ph/0511214",
"authors": [
"K. J. Resch",
"K. L. Pregnell",
"R. Prevedel",
"A. Gilchrist",
"G. J. Pryde",
"J. L. O\u0027Brien",
"A. G. White"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.98.223601",
"journal_ref": "Phys.Rev.Lett.98:223601,2007",
"title": "Time-reversal and super-resolving phase measurements",
"url": "https://arxiv.org/abs/quant-ph/0511214"
},
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