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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Result continuities

  • Project

  • 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

  • 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