Optimal entanglement-assisted 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%3A33149855" target="_blank" >RIV/61989592:15310/14:33149855 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14330/14:00080087
Result on the web
<a href="http://journals.aps.org/pra/pdf/10.1103/PhysRevA.90.022317" target="_blank" >http://journals.aps.org/pra/pdf/10.1103/PhysRevA.90.022317</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.90.022317" target="_blank" >10.1103/PhysRevA.90.022317</a>
Alternative languages
Result language
angličtina
Original language name
Optimal entanglement-assisted discrimination of quantum measurements
Original language description
We investigate optimal discrimination between two projective single-qubit measurements in a scenario where the measurement can be performed only once. We consider general setting involving a tunable fraction of inconclusive outcomes and we prove that theoptimal discrimination strategy requires an entangled probe state for any nonzero rate of inconclusive outcomes. We experimentally implement this optimal discrimination strategy for projective measurements on polarization states of single photons. Our setup involves a real-time electrooptical feed-forward loop which allows us to fully harness the benefits of entanglement in discrimination of quantum measurements. The experimental data clearly demonstrate the advantage of entanglement-based discrimination strategy as compared to unentangled single-qubit probes.
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)<br>S - Specificky vyzkum na vysokych skolach
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
2
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
"022317-1"-"022317-6"
UT code for WoS article
000341251400007
EID of the result in the Scopus database
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