Artículos de revistas
Information entropy and spin-squeezing in atomic three-level systems
Fecha
2013-07Registro en:
Reboiro, Marta; Civitarese, Enrique Osvaldo; Tielas, Diego Alejandro; Information entropy and spin-squeezing in atomic three-level systems; World Scientific; International Journal of Modern Physics B; 27; 22; 7-2013; 1350117-1350136
0217-9792
1793-6578
CONICET Digital
CONICET
Autor
Reboiro, Marta
Civitarese, Enrique Osvaldo
Tielas, Diego Alejandro
Resumen
We consider the problem of an atomic three-level system in interaction with a radiation field. The time evolution of the system, in atomic ladder and Λ configurations, is solved exactly assuming a coherent-state as the initial atomic state. We calculate the atomic spin-squeezing, the atomic entropy-squeezing, and their variances. We show that the spin-squeezing and the entropy-squeezing exhibit similar time dependence.