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01-Applied Mathematics & Information Sciences
An International Journal


Volumes > Volume 9 > No. 6


Squeezed Versus Non-Gaussian Fluctuations in Resonance Fluorescence

PP: 2849-2857
Héctor M. Castro-Beltrán, Luis Gutiérrez, Levente Horvath,
We study theoretically the fluorescence of a two-level atom driven by a laser of weak to moderate intensity, that is, a regime where squeezing would occur. Close to saturation atomic fluctuations dominate and become non-Gaussian, degrading the squeezing. Using Bloch equations and quantum jump trajectories we find that allowing a moderate degree of non-linearity, conditional homodyne detection [G.T. Foster, L.A. Orozco, H.M. Castro-Beltran, H.J. Carmichael, Phys. Rev. Lett. 85, pp. 3149-3152, 2000] would actually help in observing the elusive squeezing in the fluorescence by increasing the size of the characteristic negative spectrum.

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