dorsal/arxiv
View SchemaIs orbital angular momentum always conserved in spontaneous parametric down-conversion?
| Authors | Sheng Feng, Chao-Hsiang Chen, Geraldo A. Barbosa, Prem Kumar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0703212 |
| URL | https://arxiv.org/abs/quant-ph/0703212 |
| DOI | 10.1117/12.734118 |
Abstract
In the non-linear optical process of type-II spontaneous parametric down-conversion, we present on an experiment showing that the two-photon detection amplitude of the down-converted beams does not generally reproduce the transverse profile of the pump beam that carries non-zero orbital angular momentum. We explain this observation by that orbital angular momentum is not conserved in the type-II non-linear process due to the broken rotational symmetry of the Hamiltonian.
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"abstract": "In the non-linear optical process of type-II spontaneous parametric\ndown-conversion, we present on an experiment showing that the two-photon\ndetection amplitude of the down-converted beams does not generally reproduce\nthe transverse profile of the pump beam that carries non-zero orbital angular\nmomentum. We explain this observation by that orbital angular momentum is not\nconserved in the type-II non-linear process due to the broken rotational\nsymmetry of the Hamiltonian.",
"arxiv_id": "quant-ph/0703212",
"authors": [
"Sheng Feng",
"Chao-Hsiang Chen",
"Geraldo A. Barbosa",
"Prem Kumar"
],
"categories": [
"quant-ph"
],
"doi": "10.1117/12.734118",
"title": "Is orbital angular momentum always conserved in spontaneous parametric down-conversion?",
"url": "https://arxiv.org/abs/quant-ph/0703212"
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