dorsal/arxiv
View SchemaEntangled photons, nonlocality and Bell inequalities in the undergraduate laboratory
| Authors | Dietrich Dehlinger, M. W. Mitchell |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0205171 |
| URL | https://arxiv.org/abs/quant-ph/0205171 |
| DOI | 10.1119/1.1498860 |
Abstract
We use polarization-entangled photon pairs to demonstrate quantum nonlocality in an experiment suitable for advanced undergraduates. The photons are produced by spontaneous parametric downconversion using a violet diode laser and two nonlinear crystals. The polarization state of the photons is tunable. Using an entangled state analogous to that described in the Einstein-Podolsky-Rosen ``paradox,'' we demonstrate strong polarization correlations of the entanged photons. Bell's idea of a hidden variable theory is presented by way of an example and compared to the quantum prediction. A test of the Clauser, Horne, Shimony and Holt version of the Bell inequality finds $S = 2.307 \pm 0.035$, in clear contradiciton of hidden variable theories. The experiments described can be performed in an afternoon.
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"abstract": "We use polarization-entangled photon pairs to demonstrate quantum nonlocality\nin an experiment suitable for advanced undergraduates. The photons are produced\nby spontaneous parametric downconversion using a violet diode laser and two\nnonlinear crystals. The polarization state of the photons is tunable. Using an\nentangled state analogous to that described in the Einstein-Podolsky-Rosen\n``paradox,\u0027\u0027 we demonstrate strong polarization correlations of the entanged\nphotons. Bell\u0027s idea of a hidden variable theory is presented by way of an\nexample and compared to the quantum prediction. A test of the Clauser, Horne,\nShimony and Holt version of the Bell inequality finds $S = 2.307 \\pm 0.035$, in\nclear contradiciton of hidden variable theories. The experiments described can\nbe performed in an afternoon.",
"arxiv_id": "quant-ph/0205171",
"authors": [
"Dietrich Dehlinger",
"M. W. Mitchell"
],
"categories": [
"quant-ph"
],
"doi": "10.1119/1.1498860",
"title": "Entangled photons, nonlocality and Bell inequalities in the undergraduate laboratory",
"url": "https://arxiv.org/abs/quant-ph/0205171"
},
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