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
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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
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