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Experimental hierarchy and optimal robustness of quantum correlations of two-qubit states with controllable white noise

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00552203" target="_blank" >RIV/68378271:_____/21:00552203 - isvavai.cz</a>

  • Alternative codes found

    RIV/61989592:15310/21:73609862

  • Result on the web

    <a href="https://doi.org/10.1103/PhysRevA.104.062436" target="_blank" >https://doi.org/10.1103/PhysRevA.104.062436</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevA.104.062436" target="_blank" >10.1103/PhysRevA.104.062436</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Experimental hierarchy and optimal robustness of quantum correlations of two-qubit states with controllable white noise

  • Original language description

    We demonstrate a hierarchy of various classes of quantum correlations on experimentally prepared two-qubit Werner-like states with controllable white noise. Werner states, which are white-noise-affected Bell states, are prototypal examples for studying sucha hierarchy as a function of the amount of white noise. We experimentally generate Werner states and their generalizations, i.e., partially entangled pure states affected by white noise. These states enable us to study the hierarchy of the following classes of correlations: separability, entanglement, steering in three-and two-measurement scenarios, and Bell nonlocality. We show that the generalized Werner states (GWSs) reveal fundamentally different aspects of the hierarchy compared to the Werner states. In particular, we find five different parameter regimes of the GWSs, including those steerable in a two-measurement scenario but not violating Bell inequalities. This regime cannot be observed for the usual Werner states.

  • 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

    10306 - Optics (including laser optics and quantum optics)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • 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

    2469-9926

  • e-ISSN

    2469-9934

  • Volume of the periodical

    104

  • Issue of the periodical within the volume

    6

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    21

  • Pages from-to

    062436

  • UT code for WoS article

    000735250900003

  • EID of the result in the Scopus database

    2-s2.0-85122190507