dorsal/arxiv
View SchemaGlobal information balance in quantum measurements
| Authors | Francesco Buscemi, Masahito Hayashi, Michal Horodecki |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0702166 |
| URL | https://arxiv.org/abs/quant-ph/0702166 |
| DOI | 10.1103/PhysRevLett.100.210504 |
| Journal | Phys. Rev. Lett. 100, 210504 (2008) |
Abstract
We perform an information-theoretical analysis of quantum measurement processes and obtain the global information balance in quantum measurements, in the form of a closed chain equation for quantum mutual entropies. Our balance provides a tight and general entropic information-disturbance trade-off, and explains the physical mechanism underlying it. Finally, the single-outcome case, that is, the case of measurements with post-selection, is briefly discussed.
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"abstract": "We perform an information-theoretical analysis of quantum measurement\nprocesses and obtain the global information balance in quantum measurements, in\nthe form of a closed chain equation for quantum mutual entropies. Our balance\nprovides a tight and general entropic information-disturbance trade-off, and\nexplains the physical mechanism underlying it. Finally, the single-outcome\ncase, that is, the case of measurements with post-selection, is briefly\ndiscussed.",
"arxiv_id": "quant-ph/0702166",
"authors": [
"Francesco Buscemi",
"Masahito Hayashi",
"Michal Horodecki"
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"quant-ph"
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"doi": "10.1103/PhysRevLett.100.210504",
"journal_ref": "Phys. Rev. Lett. 100, 210504 (2008)",
"title": "Global information balance in quantum measurements",
"url": "https://arxiv.org/abs/quant-ph/0702166"
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