dorsal/arxiv
View SchemaCharacterization of tomographically faithful states in terms of their Wigner function
| Authors | G. M. D'Ariano, M. F. Sacchi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0503022 |
| URL | https://arxiv.org/abs/quant-ph/0503022 |
| DOI | 10.1088/1464-4266/7/10/030 |
| Journal | J. Opt. B 7, S408 (2005) |
Abstract
A bipartite quantum state is tomographically faithful when it can be used as an input of a quantum operation acting on one of the two quantum systems, such that the joint output state carries a complete information about the operation itself. Tomographically faithful states are a necessary ingredient for tomography of quantum operations and for complete quantum calibration of measuring apparatuses. In this paper we provide a complete classification of such states for continuous variables in terms of the Wigner function of the state. For two-mode Gaussian states faithfulness simply resorts to correlation between the modes.
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"abstract": "A bipartite quantum state is tomographically faithful when it can be used as\nan input of a quantum operation acting on one of the two quantum systems, such\nthat the joint output state carries a complete information about the operation\nitself. Tomographically faithful states are a necessary ingredient for\ntomography of quantum operations and for complete quantum calibration of\nmeasuring apparatuses. In this paper we provide a complete classification of\nsuch states for continuous variables in terms of the Wigner function of the\nstate. For two-mode Gaussian states faithfulness simply resorts to correlation\nbetween the modes.",
"arxiv_id": "quant-ph/0503022",
"authors": [
"G. M. D\u0027Ariano",
"M. F. Sacchi"
],
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"quant-ph"
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"doi": "10.1088/1464-4266/7/10/030",
"journal_ref": "J. Opt. B 7, S408 (2005)",
"title": "Characterization of tomographically faithful states in terms of their Wigner function",
"url": "https://arxiv.org/abs/quant-ph/0503022"
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