dorsal/arxiv
View SchemaStokes operator squeezed continuous variable polarization states
| Authors | Roman Schnabel, Warwick P. Bowen, Nicolas Treps, Timothy C. Ralph, Hans-A. Bachor, Ping Koy Lam |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0208103 |
| URL | https://arxiv.org/abs/quant-ph/0208103 |
| DOI | 10.1103/PhysRevA.67.012316 |
| Journal | Phys. Rev. A 67, 012316 (2003) |
Abstract
We investigate quantum correlations in continuous wave polarization squeezed laser light generated from one and two optical parametric amplifiers, respectively. A general expression of how Stokes operator variances decompose into two mode quadrature operator variances is given. Stokes parameter variance spectra for four different polarization squeezed states have been measured and compared with a coherent state. Our measurement results are visualized by three-dimensional Stokes operator noise volumes mapped on the quantum Poincare sphere. We quantitatively compare the channel capacity of the different continuous variable polarization states for communication protocols. It is shown that squeezed polarization states provide 33% higher channel capacities than the optimum coherent beam protocol.
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"abstract": "We investigate quantum correlations in continuous wave polarization squeezed\nlaser light generated from one and two optical parametric amplifiers,\nrespectively. A general expression of how Stokes operator variances decompose\ninto two mode quadrature operator variances is given. Stokes parameter variance\nspectra for four different polarization squeezed states have been measured and\ncompared with a coherent state. Our measurement results are visualized by\nthree-dimensional Stokes operator noise volumes mapped on the quantum Poincare\nsphere. We quantitatively compare the channel capacity of the different\ncontinuous variable polarization states for communication protocols. It is\nshown that squeezed polarization states provide 33% higher channel capacities\nthan the optimum coherent beam protocol.",
"arxiv_id": "quant-ph/0208103",
"authors": [
"Roman Schnabel",
"Warwick P. Bowen",
"Nicolas Treps",
"Timothy C. Ralph",
"Hans-A. Bachor",
"Ping Koy Lam"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.67.012316",
"journal_ref": "Phys. Rev. A 67, 012316 (2003)",
"title": "Stokes operator squeezed continuous variable polarization states",
"url": "https://arxiv.org/abs/quant-ph/0208103"
},
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