dorsal/arxiv
View SchemaOptimal estimation of quantum observables
| Authors | Giacomo Mauro D'Ariano, Vittorio Giovannetti, Paolo Perinotti |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0510187 |
| URL | https://arxiv.org/abs/quant-ph/0510187 |
| DOI | 10.1063/1.2168122 |
| Journal | J. Math. Phys. 47 022102 (2006) |
Abstract
We consider the problem of estimating the ensemble average of an observable on an ensemble of equally prepared identical quantum systems. We show that, among all kinds of measurements performed jointly on the copies, the optimal unbiased estimation is achieved by the usual procedure that consists in performing independent measurements of the observable on each system and averaging the measurement outcomes.
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"abstract": "We consider the problem of estimating the ensemble average of an observable\non an ensemble of equally prepared identical quantum systems. We show that,\namong all kinds of measurements performed jointly on the copies, the optimal\nunbiased estimation is achieved by the usual procedure that consists in\nperforming independent measurements of the observable on each system and\naveraging the measurement outcomes.",
"arxiv_id": "quant-ph/0510187",
"authors": [
"Giacomo Mauro D\u0027Ariano",
"Vittorio Giovannetti",
"Paolo Perinotti"
],
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"quant-ph"
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"doi": "10.1063/1.2168122",
"journal_ref": "J. Math. Phys. 47 022102 (2006)",
"title": "Optimal estimation of quantum observables",
"url": "https://arxiv.org/abs/quant-ph/0510187"
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