Characterizing nonclassical correlations of tensorizing states in a bilocal scenario

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00368913" target="_blank" >RIV/68407700:21340/23:00368913 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s11128-022-03789-y" target="_blank" >https://doi.org/10.1007/s11128-022-03789-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11128-022-03789-y" target="_blank" >10.1007/s11128-022-03789-y</a>

Result language
angličtina
Original language name
Characterizing nonclassical correlations of tensorizing states in a bilocal scenario
Original language description
In the present paper, we attempt to address the question of "can tensorizing states (rho circle times rho or rho circle times rho circle times rho') have quantum advantages? ". To answer this question, we exploit the notion of measurement-induced nonlocality (MIN) and advocate a fidelity-based nonbilocal measure to capture the nonlocal effects of tensorizing states due to locally invariant von Neumann projective measurements. We show that the properties of the fidelity-based nonbilocal measures are retrieved from that of MIN. Analytically, we evaluate the nonbilocal measure for any arbitrary pure state. The upper bounds of the nonbilocal measure based on fidelity are also obtained in terms of eigenvalues of correlation matrix. As an illustration, we have computed the nonbilocality for some popular input states.
Czech name
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Czech description
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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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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