| Revista: | Computación y sistemas |
| Base de datos: | |
| Número de sistema: | 000560324 |
| ISSN: | 1405-5546 |
| Autors: | Ávila Aoki, Manuel1 Honorato, Carlos Gerardo1 Hernández Vázquez, José Eladio1 |
| Institucions: | 1Universidad Autónoma del Estado de México, Centro Universitario Valle de Chalco, Chalco, Estado de México. México |
| Any: | 2019 |
| Període: | Abr-Jun |
| Volum: | 23 |
| Número: | 2 |
| Paginació: | 469-476 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Resumen en inglés | 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 |
| Paraules clau: | Procesamiento de datos |
| Keyword: | 3-qubits, Non-classical communications, Quantum information processing, Entanglement, Data processing |
| Text complet: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
