Quantifying Quantum Correlation of Quasi-Werner State and Probing Its Suitability for Quantum Teleportation
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Quantifying Quantum Correlation of Quasi-Werner State and Probing Its Suitability for Quantum Teleportation
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Quantifying Quantum Correlation of Quasi-Werner State and Probing Its Suitability for Quantum Teleportation
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10306 - Optics (including laser optics and quantum optics)
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
ANNALEN DER PHYSIK
ISSN
0003-3804
e-ISSN
—
Svazek periodika
533
Číslo periodika v rámci svazku
10
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
12
Strana od-do
"2100201-1"-"2100201-12"
Kód UT WoS článku
000669432800001
EID výsledku v databázi Scopus
2-s2.0-85109150020