dorsal/arxiv
View SchemaEntanglement in the above-threshold optical parametric oscillator
| Authors | Alessandro S. Villar, Katiuscia N. Cassemiro, Kaled Dechoum, Antonio Z. Khoury, Marcelo Martinelli, Paulo Nussenzveig |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0610208 |
| URL | https://arxiv.org/abs/quant-ph/0610208 |
| DOI | 10.1364/JOSAB.24.000249 |
Abstract
We investigate entanglement in the above-threshold Optical Parametric Oscillator, both theoretically and experimentally, and discuss its potential applications to quantum information. The fluctuations measured in the subtraction of signal and idler amplitude quadratures are $\Delta^2 \hat p_-=0.50(1)$, or $-3.01(9)$ dB, and in the sum of phase quadratures are $\Delta^2 \hatq_+=0.73(1)$, or $-1.37(6)$ dB. A detailed experimental study of the noise behavior as a function of pump power is presented, and discrepancies with theory are discussed.
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"abstract": "We investigate entanglement in the above-threshold Optical Parametric\nOscillator, both theoretically and experimentally, and discuss its potential\napplications to quantum information. The fluctuations measured in the\nsubtraction of signal and idler amplitude quadratures are $\\Delta^2 \\hat\np_-=0.50(1)$, or $-3.01(9)$ dB, and in the sum of phase quadratures are\n$\\Delta^2 \\hatq_+=0.73(1)$, or $-1.37(6)$ dB. A detailed experimental study of\nthe noise behavior as a function of pump power is presented, and discrepancies\nwith theory are discussed.",
"arxiv_id": "quant-ph/0610208",
"authors": [
"Alessandro S. Villar",
"Katiuscia N. Cassemiro",
"Kaled Dechoum",
"Antonio Z. Khoury",
"Marcelo Martinelli",
"Paulo Nussenzveig"
],
"categories": [
"quant-ph"
],
"doi": "10.1364/JOSAB.24.000249",
"title": "Entanglement in the above-threshold optical parametric oscillator",
"url": "https://arxiv.org/abs/quant-ph/0610208"
},
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