Linking entanglement detection and state tomography via quantum 2-designs
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F19%3A00113862" target="_blank" >RIV/00216224:14330/19:00113862 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1367-2630/aaf8cf" target="_blank" >http://dx.doi.org/10.1088/1367-2630/aaf8cf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1367-2630/aaf8cf" target="_blank" >10.1088/1367-2630/aaf8cf</a>
Alternative languages
Result language
angličtina
Original language name
Linking entanglement detection and state tomography via quantum 2-designs
Original language description
We present an experimentally feasible and efficient method for detecting entangled states with measurements that extend naturally to a tomographically complete set. Our detection criterion for bipartite systems with equal dimensions is based on measurements from subsets of a quantum 2-design, e.g. mutually unbiased bases or symmetric informationally complete states, and has several advantages over standard entanglement witnesses. First, as more detectors in the measurement are applied, there is a higher chance of witnessing a larger set of entangled states, in such a way that the measurement setting converges to a complete setup for quantum state tomography. Secondly, our method is twice as effective as standard witnesses in the sense that both upper and lower bounds can be derived. Thirdly, the scheme can be readily applied to measurement-device-independent scenarios.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
New Journal of Physics
ISSN
1367-2630
e-ISSN
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Volume of the periodical
21
Issue of the periodical within the volume
013012
Country of publishing house
DE - GERMANY
Number of pages
20
Pages from-to
1-20
UT code for WoS article
000456276000003
EID of the result in the Scopus database
2-s2.0-85062536065