Abstract

In the presence of inverse Doppler shift, we verify the superluminal effect in a weak probe field through the medium of our atomic system using classes of the atoms of high average velocity. Additional analysis of analytical results for the advancement of Gaussian pulse in time is presented. The pulse advancement through the single transparency window under the weak control field increases. The pulse advancement through the central (each of the sides) window of the medium under the strong control field increases (decreases) when its intensity is gradually increased.

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