dorsal/arxiv
View SchemaPhoton subtracted states and enhancement of nonlocality in the presence of noise
| Authors | Stefano Olivares, Matteo G. A. Paris |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0503104 |
| URL | https://arxiv.org/abs/quant-ph/0503104 |
| DOI | 10.1088/1464-4266/7/10/027 |
| Journal | J. Opt. B: Quantum and Semiclass. Opt. 7, S392 (2005) |
Abstract
We address nonlocality of continuous variable systems in the presence of dissipation and noise. Three nonlocality tests have been considered, based on the measurement of displaced-parity, field-quadrature and pseudospin-operator, respectively. Nonlocality of twin beam has been investigated, as well as that of its non-Gaussian counterparts obtained by inconclusive subtraction of photons. Our results indicate that: i) nonlocality of twin beam is degraded but not destroyed by noise; ii) photon subtraction enhances nonlocality in the presence of noise, especially in the low-energy regime.
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"abstract": "We address nonlocality of continuous variable systems in the presence of\ndissipation and noise. Three nonlocality tests have been considered, based on\nthe measurement of displaced-parity, field-quadrature and pseudospin-operator,\nrespectively. Nonlocality of twin beam has been investigated, as well as that\nof its non-Gaussian counterparts obtained by inconclusive subtraction of\nphotons. Our results indicate that: i) nonlocality of twin beam is degraded but\nnot destroyed by noise; ii) photon subtraction enhances nonlocality in the\npresence of noise, especially in the low-energy regime.",
"arxiv_id": "quant-ph/0503104",
"authors": [
"Stefano Olivares",
"Matteo G. A. Paris"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1464-4266/7/10/027",
"journal_ref": "J. Opt. B: Quantum and Semiclass. Opt. 7, S392 (2005)",
"title": "Photon subtracted states and enhancement of nonlocality in the presence of noise",
"url": "https://arxiv.org/abs/quant-ph/0503104"
},
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