Alexandria Engineering Journal

Intrinsic decoherence effect on dynamics of a Λ -type qutrit interacting nonlinearly with a coherent field

A.‐B. A. Mohamed, M M Elkhateeb, Mostafa Hashem, A.‐S. F. Obada

Published Jul 9, 2021• 4 citations

Abstract

In this paper, an intrinsic decoherence model is solved analytically for a Λ-type qutrit interacting with a coherent field through intensity-dependent coupling. The effects of the qutrit-cavity interaction, the intrinsic decoherence and the initial coherent field intensity are examined on some quantum phenomena as: atom population inversion, mixedness, entanglement as well as total correlation. It is found that the increase of the physical parameters, the regular oscillatory behavior of the qutrit-population collapses and revivals are changed remarkably. The interaction between the three-level atom and the coherent cavity field generates a strong mixture, negativity entanglement and total correlation (classical + quantum). The growth, the regularity and the stability of these quantum effects depend on the decoherence and the initial coherent cavity intensity.

DOI: 10.1016/j.aej.2021.06.084

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