Optimal single-shot strategies for discrimination of quantum measurements
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33150299" target="_blank" >RIV/61989592:15310/14:33150299 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14330/14:00074512
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevA.90.052312" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.90.052312</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.90.052312" target="_blank" >10.1103/PhysRevA.90.052312</a>
Alternative languages
Result language
angličtina
Original language name
Optimal single-shot strategies for discrimination of quantum measurements
Original language description
We study discrimination of m quantum measurements in the scenario when the unknown measurement with n outcomes can be used only once. We show that ancilla-assisted discrimination procedures provide a nontrivial advantage over simple (ancilla-free) schemes for perfect distinguishability and we prove that inevitably m {= n. We derive necessary and sufficient conditions of perfect distinguishability of general binary measurements. We show that the optimization of the discrimination of projective qubit measurements and their mixtures with white noise is equivalent to the discrimination of specific quantum states. In particular, the optimal protocol for discrimination of projective qubit measurements with fixed failure rate (exploiting maximally entangled test state) is described. While minimum-error discrimination of two projective qubit measurements can be realized without any need of entanglement, we show that discrimination of three projective qubit measurements requires a bipartite pro
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BH - Optics, masers and lasers
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review A
ISSN
1050-2947
e-ISSN
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Volume of the periodical
90
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
"052312-1"-"052312-12"
UT code for WoS article
000344914400007
EID of the result in the Scopus database
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