Two measures elaborated for entangled states: Quantum entropy and fidelity using Schmidt coefficients of the reduced density matrix of full TRI



Document title: Two measures elaborated for entangled states: Quantum entropy and fidelity using Schmidt coefficients of the reduced density matrix of full TRI
Journal: Revista mexicana de física
Database: PERIÓDICA
System number: 000454115
ISSN: 0035-001X
Authors: 1
2
Institutions: 1Afyon Kocatepe University, Department of Physics, Afyonkarahisar. Turquía
2Usak University, Faculty of Science, Usak. Turquía
Year:
Season: Sep-Oct
Volumen: 68
Number: 5
Country: México
Language: Inglés
Document type: Artículo
Approach: Analítico, teórico
English abstract In the present study, we determined quantum entanglement in a full trapped ion (TRI)-coherent system and its dependence on the Lamb-Dicke parameter (LDP). We investigated the entanglement in view of two elaborated measurements of the family: entropy and fidelity. We selected three values of the deep LDP to demonstrate the benefits of these two critical measures. The findings obtained in this study showed that the maximum value of fidelity for entangled states is quantified approximately to be 0.35, and the long lifetime is also observed with entropy measurement. The findings suggest that three coupling parameters play a significant role in developing quantum entanglement
Disciplines: Física y astronomía
Keyword: Física,
Estados Qudit,
Fidelidad,
Operador de densidad total,
Correlaciones cuánticas
Keyword: Physics,
Qudit states,
Fidelity,
Total density operator,
Quantum correlations
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