dorsal/arxiv
View SchemaCovariant fuzzy observables and coarse-graining
| Authors | T. Heinonen, P. Lahti, K. Ylinen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0312142 |
| URL | https://arxiv.org/abs/quant-ph/0312142 |
| DOI | 10.1016/S0034-4877(04)90028-6 |
| Journal | Rep. Math. Phys. 53 (2004) 425-441. |
Abstract
A fuzzy observable is regarded as a smearing of a sharp observable, and the structure of covariant fuzzy observables is studied. It is shown that the covariant coarse-grainings of sharp observables are exactly the covariant fuzzy observables. A necessary and sufficient condition for a covariant fuzzy observable to be informationally equivalent to the corresponding sharp observable is given.
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"abstract": "A fuzzy observable is regarded as a smearing of a sharp observable, and the\nstructure of covariant fuzzy observables is studied. It is shown that the\ncovariant coarse-grainings of sharp observables are exactly the covariant fuzzy\nobservables. A necessary and sufficient condition for a covariant fuzzy\nobservable to be informationally equivalent to the corresponding sharp\nobservable is given.",
"arxiv_id": "quant-ph/0312142",
"authors": [
"T. Heinonen",
"P. Lahti",
"K. Ylinen"
],
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"doi": "10.1016/S0034-4877(04)90028-6",
"journal_ref": "Rep. Math. Phys. 53 (2004) 425-441.",
"title": "Covariant fuzzy observables and coarse-graining",
"url": "https://arxiv.org/abs/quant-ph/0312142"
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