dorsal/arxiv
View SchemaOptimal discrimination of mixed quantum states involving inconclusive results
| Authors | Jaromir Fiurasek, Miroslav Jezek |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0208126 |
| URL | https://arxiv.org/abs/quant-ph/0208126 |
| DOI | 10.1103/PhysRevA.67.012321 |
| Journal | Phys. Rev. A 67, 012321 (2003). |
Abstract
We propose a generalized discrimination scheme for mixed quantum states. In the present scenario we allow for certain fixed fraction of inconclusive results and we maximize the success rate of the quantum-state discrimination. This protocol interpolates between the Ivanovic-Dieks-Peres scheme and the Helstrom one. We formulate the extremal equations for the optimal positive operator valued measure describing the discrimination device and establish a criterion for its optimality. We also devise a numerical method for efficient solving of these extremal equations.
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"abstract": "We propose a generalized discrimination scheme for mixed quantum states. In\nthe present scenario we allow for certain fixed fraction of inconclusive\nresults and we maximize the success rate of the quantum-state discrimination.\nThis protocol interpolates between the Ivanovic-Dieks-Peres scheme and the\nHelstrom one. We formulate the extremal equations for the optimal positive\noperator valued measure describing the discrimination device and establish a\ncriterion for its optimality. We also devise a numerical method for efficient\nsolving of these extremal equations.",
"arxiv_id": "quant-ph/0208126",
"authors": [
"Jaromir Fiurasek",
"Miroslav Jezek"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.67.012321",
"journal_ref": "Phys. Rev. A 67, 012321 (2003).",
"title": "Optimal discrimination of mixed quantum states involving inconclusive results",
"url": "https://arxiv.org/abs/quant-ph/0208126"
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