dorsal/arxiv
View SchemaImproved discrimination of unitaries by entangled probes
| Authors | G. Mauro D'Ariano, Paoloplacido Lo Presti, Matteo G. A. Paris |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0204050 |
| URL | https://arxiv.org/abs/quant-ph/0204050 |
| DOI | 10.1088/1464-4266/4/4/304 |
| Journal | J. Opt. B vol 4 273 (2002) |
Abstract
We consider the problem of discriminating among a set of unitaries by means of measurements performed on the state undergoing the transformation. We show that use of entangled probes improves the discrimination in the two following cases: i) for a set of unitaries that are the UIR of a group and, ii) for any pair of transformations provided that multiple uses of the channel are allowed.
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"abstract": "We consider the problem of discriminating among a set of unitaries by means\nof measurements performed on the state undergoing the transformation. We show\nthat use of entangled probes improves the discrimination in the two following\ncases: i) for a set of unitaries that are the UIR of a group and, ii) for any\npair of transformations provided that multiple uses of the channel are allowed.",
"arxiv_id": "quant-ph/0204050",
"authors": [
"G. Mauro D\u0027Ariano",
"Paoloplacido Lo Presti",
"Matteo G. A. Paris"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1464-4266/4/4/304",
"journal_ref": "J. Opt. B vol 4 273 (2002)",
"title": "Improved discrimination of unitaries by entangled probes",
"url": "https://arxiv.org/abs/quant-ph/0204050"
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