dorsal/arxiv
View SchemaIdentifying entanglement using quantum "ghost" interference and imaging
| Authors | Milena D'Angelo, Yoon-Ho Kim, Sergei P. Kulik, Yanhua Shih |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0401007 |
| URL | https://arxiv.org/abs/quant-ph/0401007 |
| DOI | 10.1103/PhysRevLett.92.233601 |
Abstract
We report a quantum interference and imaging experiment which quantitatively demonstrates that Einstein-Podolsky-Rosen (EPR) type entangled two-photon states exhibit both momentum-momentum and position-position correlations, stronger than any classical correlation. The measurements show indeed that the uncertainties in the sum of momenta and in the difference of positions of the entangled two-photon satisfy both EPR inequalities D(k1+k2)<min(D(k1),D(k2)) and D(x1-x2)<min(D(x1),D(x2)). These two inequalities, together, represent a non-classicality condition. Our measurements provide a direct way to distinguish between quantum entanglement and classical correlation in continuous variables for two-photons/two photons systems.
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"abstract": "We report a quantum interference and imaging experiment which quantitatively\ndemonstrates that Einstein-Podolsky-Rosen (EPR) type entangled two-photon\nstates exhibit both momentum-momentum and position-position correlations,\nstronger than any classical correlation. The measurements show indeed that the\nuncertainties in the sum of momenta and in the difference of positions of the\nentangled two-photon satisfy both EPR inequalities D(k1+k2)\u003cmin(D(k1),D(k2))\nand D(x1-x2)\u003cmin(D(x1),D(x2)). These two inequalities, together, represent a\nnon-classicality condition. Our measurements provide a direct way to\ndistinguish between quantum entanglement and classical correlation in\ncontinuous variables for two-photons/two photons systems.",
"arxiv_id": "quant-ph/0401007",
"authors": [
"Milena D\u0027Angelo",
"Yoon-Ho Kim",
"Sergei P. Kulik",
"Yanhua Shih"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.92.233601",
"title": "Identifying entanglement using quantum \"ghost\" interference and imaging",
"url": "https://arxiv.org/abs/quant-ph/0401007"
},
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"execution_id": "09277de3-b69e-481e-b1c3-7502fbe73f38",
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