Quantifying Quantum Correlation of Quasi-Werner State and Probing Its Suitability for Quantum Teleportation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73608227" target="_blank" >RIV/61989592:15310/21:73608227 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202100201" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202100201</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/andp.202100201" target="_blank" >10.1002/andp.202100201</a>
Alternative languages
Result language
angličtina
Original language name
Quantifying Quantum Correlation of Quasi-Werner State and Probing Its Suitability for Quantum Teleportation
Original language description
The significance of photon addition in engineering the single- and two-mode (bipartite correlations) nonclassical properties of a quantum state is investigated. Specifically, the behavior of the Wigner function of two quasi-Werner states constructed by superposing two normalized bipartite m-photon added coherent states are analyzed. This allows the authors' to quantify the nonclassicality present in the quantum states using Wigner logarithmic negativity (WLN), while quantum correlations are measured using concurrence, entanglement of formation, and quantum discord. The WLN for a two-mode state corresponds to the sum of the single-mode nonclassicality and quantum correlations, and both of these are observed to enhance with photon addition manifesting the efficacy of photon addition in the entanglement distillation. Usefulness of photon addition is further established by showing that the performance of the quasi-Werner states as quantum channel for the teleportation of single-mode coherent and squeezed states, as quantified via teleportation fidelity, improves with the photon addition. The non-Gaussian operation is shown effective in stalling the detrimental effects of transmission through noisy channel and/or inefficient detection under realistic scenario. Further, in contrast to a set of existing results, it is established that the negative values of two-mode Wigner function is not a witness of quantum correlation.
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
ANNALEN DER PHYSIK
ISSN
0003-3804
e-ISSN
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Volume of the periodical
533
Issue of the periodical within the volume
10
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
"2100201-1"-"2100201-12"
UT code for WoS article
000669432800001
EID of the result in the Scopus database
2-s2.0-85109150020