Journal: | Computación y sistemas |
Database: | |
System number: | 000560324 |
ISSN: | 1405-5546 |
Authors: | Ávila Aoki, Manuel1 Honorato, Carlos Gerardo1 Hernández Vázquez, José Eladio1 |
Institutions: | 1Universidad Autónoma del Estado de México, Centro Universitario Valle de Chalco, Chalco, Estado de México. México |
Year: | 2019 |
Season: | Abr-Jun |
Volumen: | 23 |
Number: | 2 |
Pages: | 469-476 |
Country: | México |
Language: | Inglés |
Document type: | Artículo |
English abstract | We consider a pure 3-qubits system interacting through a XY-Hamiltonian with antiferromagnetic constant J. We employ the 3-tangle as an efficient measure of the entanglement between such a 3-qubit system. The time evolution of such a 3-tangle is studied. In order to do the above, the 3-tangle associated to the pure 3-qubit state | ψ t = c 0 t | 000 + c 1 t | 001 + c 2 t | 010 + c 3 t | 011 + c 4 t | 100 + c 5 t | 101 + c 6 t | 110 + c 7 t | 111 is calculated as a function of the initial coefficients c i t = 0 i = 0,1 , … , 7, the time t and the antiferromagnetic constant J. We find that the 3-tangle of the 3-qubit system is periodic with period t = 4 π / J. Furthermore, we also find that the 3-tangle as a function of the time t and J has maximal and minimum values. The maximal values of the 3-tangle can be employed in Quantum Information Protocols (QIP) that use entanglement as a basic resource. The pattern found for the 3-tangle of the system of three qubits interacting through a XY Hamiltonian as a function of J and the time t resembles to a quantized physical quantity. |
Disciplines: | Ciencias de la computación |
Keyword: | Procesamiento de datos |
Keyword: | 3-qubits, Non-classical communications, Quantum information processing, Entanglement, Data processing |
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