dorsal/arxiv
View SchemaContractions, Matrix Paramatrizations, and Quantum Information
| Authors | M. C. Tseng |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0610259 |
| URL | https://arxiv.org/abs/quant-ph/0610259 |
Abstract
In this note, we discuss dilation-theoretic matrix parametrizations of contractions and positive matrices. These parametrizations are then applied to some problems in quantum information theory. First we establish some properties of positive maps, or entanglement witnesses. Two further applications, concerning concrete dilations of completely positive maps, in particular quantum operations, are given.
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"abstract": "In this note, we discuss dilation-theoretic matrix parametrizations of\ncontractions and positive matrices. These parametrizations are then applied to\nsome problems in quantum information theory. First we establish some properties\nof positive maps, or entanglement witnesses. Two further applications,\nconcerning concrete dilations of completely positive maps, in particular\nquantum operations, are given.",
"arxiv_id": "quant-ph/0610259",
"authors": [
"M. C. Tseng"
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"title": "Contractions, Matrix Paramatrizations, and Quantum Information",
"url": "https://arxiv.org/abs/quant-ph/0610259"
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